123525131 has 4 divisors (see below), whose sum is σ = 123673200. Its totient is φ = 123377064.

The previous prime is 123525113. The next prime is 123525163. The reversal of 123525131 is 131525321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131525321 = 311 ⋅422911.

It is a cyclic number.

It is not a de Polignac number, because 123525131 - 2⁶ = 123525067 is a prime.

It is a super-2 number, since 2×123525131² = 30516915977134322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123525097 and 123525106.

It is not an unprimeable number, because it can be changed into a prime (123525431) 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, 72776 + ... + 74453.

It is an arithmetic number, because the mean of its divisors is an integer number (30918300).

Almost surely, 2^123525131 is an apocalyptic number.

123525131 is a deficient number, since it is larger than the sum of its proper divisors (148069).

123525131 is an equidigital number, since it uses as much as digits as its factorization.

123525131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148068.

The product of its digits is 900, while the sum is 23.

The square root of 123525131 is about 11114.1860250762. The cubic root of 123525131 is about 498.0257227188.

The spelling of 123525131 in words is "one hundred twenty-three million, five hundred twenty-five thousand, one hundred thirty-one".