125362891 has 4 divisors (see below), whose sum is σ = 125418784. Its totient is φ = 125307000.

The previous prime is 125362889. The next prime is 125362927. The reversal of 125362891 is 198263521.

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

It is a cyclic number.

It is not a de Polignac number, because 125362891 - 2¹ = 125362889 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 125362891.

It is not an unprimeable number, because it can be changed into a prime (125362291) 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, 24435 + ... + 29116.

It is an arithmetic number, because the mean of its divisors is an integer number (31354696).

Almost surely, 2^125362891 is an apocalyptic number.

125362891 is a deficient number, since it is larger than the sum of its proper divisors (55893).

125362891 is an equidigital number, since it uses as much as digits as its factorization.

125362891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55892.

The product of its digits is 25920, while the sum is 37.

The square root of 125362891 is about 11196.5571047532. The cubic root of 125362891 is about 500.4833871897.

It can be divided in two parts, 125362 and 891, that added together give a triangular number (126253 = T₅₀₂).

The spelling of 125362891 in words is "one hundred twenty-five million, three hundred sixty-two thousand, eight hundred ninety-one".