125146531 has 2 divisors, whose sum is σ = 125146532. Its totient is φ = 125146530.

The previous prime is 125146499. The next prime is 125146561. The reversal of 125146531 is 135641521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125146531 - 2⁵ = 125146499 is a prime.

It is a super-2 number, since 2×125146531² = 31323308442667922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125146531.

It is not a weakly prime, because it can be changed into another prime (125146561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62573265 + 62573266.

It is an arithmetic number, because the mean of its divisors is an integer number (62573266).

Almost surely, 2^125146531 is an apocalyptic number.

125146531 is a deficient number, since it is larger than the sum of its proper divisors (1).

125146531 is an equidigital number, since it uses as much as digits as its factorization.

125146531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 28.

The square root of 125146531 is about 11186.8910337055. The cubic root of 125146531 is about 500.1952983738.

The spelling of 125146531 in words is "one hundred twenty-five million, one hundred forty-six thousand, five hundred thirty-one".