123525145 has 16 divisors (see below), whose sum is σ = 157228560. Its totient is φ = 92841984.

The previous prime is 123525113. The next prime is 123525163. The reversal of 123525145 is 541525321.

It can be written as a sum of positive squares in 8 ways, for example, as 4562496 + 118962649 = 2136^2 + 10907^2 .

It is a cyclic number.

It is not a de Polignac number, because 123525145 - 2⁵ = 123525113 is a prime.

It is a super-2 number, since 2×123525145² = 30516922894542050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69589 + ... + 71341.

It is an arithmetic number, because the mean of its divisors is an integer number (9826785).

Almost surely, 2^123525145 is an apocalyptic number.

It is an amenable number.

123525145 is a deficient number, since it is larger than the sum of its proper divisors (33703415).

123525145 is a wasteful number, since it uses less digits than its factorization.

123525145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604.

The product of its digits is 6000, while the sum is 28.

The square root of 123525145 is about 11114.1866549019. The cubic root of 123525145 is about 498.0257415338.

The spelling of 123525145 in words is "one hundred twenty-three million, five hundred twenty-five thousand, one hundred forty-five".