125122051 has 4 divisors (see below), whose sum is σ = 126107392. Its totient is φ = 124136712.

The previous prime is 125122033. The next prime is 125122069. The reversal of 125122051 is 150221521.

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

It is an interprime number because it is at equal distance from previous prime (125122033) and next prime (125122069).

It is a cyclic number.

It is not a de Polignac number, because 125122051 - 2²¹ = 123024899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125122351) 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, 492480 + ... + 492733.

It is an arithmetic number, because the mean of its divisors is an integer number (31526848).

Almost surely, 2^125122051 is an apocalyptic number.

125122051 is a deficient number, since it is larger than the sum of its proper divisors (985341).

125122051 is an equidigital number, since it uses as much as digits as its factorization.

125122051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985340.

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

The square root of 125122051 is about 11185.7968424248. The cubic root of 125122051 is about 500.1626817302.

Adding to 125122051 its reverse (150221521), we get a palindrome (275343572).

The spelling of 125122051 in words is "one hundred twenty-five million, one hundred twenty-two thousand, fifty-one".