125120851 has 12 divisors (see below), whose sum is σ = 131980176. Its totient is φ = 118392560.

The previous prime is 125120843. The next prime is 125120861. The reversal of 125120851 is 158021521.

It is not a de Polignac number, because 125120851 - 2³ = 125120843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125120861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 394545 + ... + 394861.

It is an arithmetic number, because the mean of its divisors is an integer number (10998348).

Almost surely, 2^125120851 is an apocalyptic number.

125120851 is a deficient number, since it is larger than the sum of its proper divisors (6859325).

125120851 is an equidigital number, since it uses as much as digits as its factorization.

125120851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602 (or 471 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 25.

The square root of 125120851 is about 11185.7432028453. The cubic root of 125120851 is about 500.1610827658.

The spelling of 125120851 in words is "one hundred twenty-five million, one hundred twenty thousand, eight hundred fifty-one".