125340511 has 4 divisors (see below), whose sum is σ = 131937400. Its totient is φ = 118743624.

The previous prime is 125340487. The next prime is 125340521. The reversal of 125340511 is 115043521.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 125340511 - 2¹¹ = 125338463 is a prime.

It is a super-2 number, since 2×125340511² = 31420487395482242, 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 (125340521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3298416 + ... + 3298453.

It is an arithmetic number, because the mean of its divisors is an integer number (32984350).

Almost surely, 2^125340511 is an apocalyptic number.

125340511 is a deficient number, since it is larger than the sum of its proper divisors (6596889).

125340511 is an equidigital number, since it uses as much as digits as its factorization.

125340511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6596888.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 125340511 is about 11195.5576457808. The cubic root of 125340511 is about 500.4536030308.

The spelling of 125340511 in words is "one hundred twenty-five million, three hundred forty thousand, five hundred eleven".