148749012 has 18 divisors (see below), whose sum is σ = 376004538. Its totient is φ = 49582992.

The previous prime is 148748989. The next prime is 148749023. The reversal of 148749012 is 210947841.

It can be written as a sum of positive squares in only one way, i.e., 122677776 + 26071236 = 11076^2 + 5106^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×148749012² = 44252537141952288, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4131917 = 148749012 / (1 + 4 + 8 + 7 + 4 + 9 + 0 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2065923 + ... + 2065994.

It is an arithmetic number, because the mean of its divisors is an integer number (20889141).

Almost surely, 2^148749012 is an apocalyptic number.

148749012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

148749012 is an abundant number, since it is smaller than the sum of its proper divisors (227255526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

148749012 is a wasteful number, since it uses less digits than its factorization.

148749012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4131927 (or 4131922 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 148749012 is about 12196.2704135322. The cubic root of 148749012 is about 529.8480779706.

The spelling of 148749012 in words is "one hundred forty-eight million, seven hundred forty-nine thousand, twelve".