145213512 has 16 divisors (see below), whose sum is σ = 363033840. Its totient is φ = 48404496.

The previous prime is 145213499. The next prime is 145213543. The reversal of 145213512 is 215312541.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 6050563 = 145213512 / (1 + 4 + 5 + 2 + 1 + 3 + 5 + 1 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3025258 + ... + 3025305.

It is an arithmetic number, because the mean of its divisors is an integer number (22689615).

Almost surely, 2^145213512 is an apocalyptic number.

145213512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145213512 is an abundant number, since it is smaller than the sum of its proper divisors (217820328).

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

145213512 is a wasteful number, since it uses less digits than its factorization.

145213512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6050572 (or 6050568 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 145213512 is about 12050.4569207977. The cubic root of 145213512 is about 525.6165237861.

The spelling of 145213512 in words is "one hundred forty-five million, two hundred thirteen thousand, five hundred twelve".