125398877 has 8 divisors (see below), whose sum is σ = 126435360. Its totient is φ = 124366320.

The previous prime is 125398849. The next prime is 125398891. The reversal of 125398877 is 778893521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125398877 - 2¹⁸ = 125136733 is a prime.

It is a super-2 number, since 2×125398877² = 31449756705722258, 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 (125394877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106502 + ... + 107672.

It is an arithmetic number, because the mean of its divisors is an integer number (15804420).

Almost surely, 2^125398877 is an apocalyptic number.

It is an amenable number.

125398877 is a deficient number, since it is larger than the sum of its proper divisors (1036483).

125398877 is a wasteful number, since it uses less digits than its factorization.

125398877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963.

The product of its digits is 846720, while the sum is 50.

The square root of 125398877 is about 11198.1640012995. The cubic root of 125398877 is about 500.5312713017.

The spelling of 125398877 in words is "one hundred twenty-five million, three hundred ninety-eight thousand, eight hundred seventy-seven".