125040511 has 4 divisors (see below), whose sum is σ = 125236224. Its totient is φ = 124844800.

The previous prime is 125040497. The next prime is 125040527. The reversal of 125040511 is 115040521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 115040521 = 349 ⋅329629.

It is a cyclic number.

It is not a de Polignac number, because 125040511 - 2⁵ = 125040479 is a prime.

It is a super-2 number, since 2×125040511² = 31270258782282242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125040541) 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, 96895 + ... + 98176.

It is an arithmetic number, because the mean of its divisors is an integer number (31309056).

Almost surely, 2^125040511 is an apocalyptic number.

125040511 is a deficient number, since it is larger than the sum of its proper divisors (195713).

125040511 is an equidigital number, since it uses as much as digits as its factorization.

125040511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195712.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 125040511 is about 11182.1514477313. The cubic root of 125040511 is about 500.0540088325.

The spelling of 125040511 in words is "one hundred twenty-five million, forty thousand, five hundred eleven".