125135051 has 2 divisors, whose sum is σ = 125135052. Its totient is φ = 125135050.

The previous prime is 125134951. The next prime is 125135053. The reversal of 125135051 is 150531521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125135051 is a prime.

Together with 125135053, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125135053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62567525 + 62567526.

It is an arithmetic number, because the mean of its divisors is an integer number (62567526).

Almost surely, 2^125135051 is an apocalyptic number.

125135051 is a deficient number, since it is larger than the sum of its proper divisors (1).

125135051 is an equidigital number, since it uses as much as digits as its factorization.

125135051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 125135051 is about 11186.3779213828. The cubic root of 125135051 is about 500.1800031899.

Adding to 125135051 its reverse (150531521), we get a palindrome (275666572).

The spelling of 125135051 in words is "one hundred twenty-five million, one hundred thirty-five thousand, fifty-one".