125123051 has 2 divisors, whose sum is σ = 125123052. Its totient is φ = 125123050.

The previous prime is 125122957. The next prime is 125123057. The reversal of 125123051 is 150321521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125123051 - 2¹⁰ = 125122027 is a prime.

It is not a weakly prime, because it can be changed into another prime (125123057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62561525 + 62561526.

It is an arithmetic number, because the mean of its divisors is an integer number (62561526).

Almost surely, 2^125123051 is an apocalyptic number.

125123051 is a deficient number, since it is larger than the sum of its proper divisors (1).

125123051 is an equidigital number, since it uses as much as digits as its factorization.

125123051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 125123051 is about 11185.8415418778. The cubic root of 125123051 is about 500.1640141928.

Adding to 125123051 its reverse (150321521), we get a palindrome (275444572).

The spelling of 125123051 in words is "one hundred twenty-five million, one hundred twenty-three thousand, fifty-one".