148945 has 4 divisors (see below), whose sum is σ = 178740. Its totient is φ = 119152.

The previous prime is 148933. The next prime is 148949. The reversal of 148945 is 549841.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24336 + 124609 = 156^2 + 353^2 .

It is a cyclic number.

It is not a de Polignac number, because 148945 - 2⁵ = 148913 is a prime.

It is a super-2 number, since 2×148945² = 44369226050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (148949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14890 + ... + 14899.

It is an arithmetic number, because the mean of its divisors is an integer number (44685).

2¹⁴⁸⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

148945 is a deficient number, since it is larger than the sum of its proper divisors (29795).

148945 is an equidigital number, since it uses as much as digits as its factorization.

148945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29794.

The product of its digits is 5760, while the sum is 31.

The square root of 148945 is about 385.9339321697. The cubic root of 148945 is about 53.0080680728.

The spelling of 148945 in words is "one hundred forty-eight thousand, nine hundred forty-five".