125501897 has 4 divisors (see below), whose sum is σ = 132107280. Its totient is φ = 118896516.

The previous prime is 125501867. The next prime is 125501911. The reversal of 125501897 is 798105521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 798105521 = 109 ⋅7322069.

It is a cyclic number.

It is not a de Polignac number, because 125501897 - 2⁸ = 125501641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125501897.

It is not an unprimeable number, because it can be changed into a prime (125501807) 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, 3302663 + ... + 3302700.

It is an arithmetic number, because the mean of its divisors is an integer number (33026820).

Almost surely, 2^125501897 is an apocalyptic number.

It is an amenable number.

125501897 is a deficient number, since it is larger than the sum of its proper divisors (6605383).

125501897 is an equidigital number, since it uses as much as digits as its factorization.

125501897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6605382.

The product of its (nonzero) digits is 25200, while the sum is 38.

The square root of 125501897 is about 11202.7629181377. The cubic root of 125501897 is about 500.6683023460.

The spelling of 125501897 in words is "one hundred twenty-five million, five hundred one thousand, eight hundred ninety-seven".