125236621 has 8 divisors (see below), whose sum is σ = 129699584. Its totient is φ = 120800160.

The previous prime is 125236613. The next prime is 125236651. The reversal of 125236621 is 126632521.

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 125236621 - 2³ = 125236613 is a prime.

It is a super-2 number, since 2×125236621² = 31368422478995282, which contains 22 as substring.

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 125236621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125236651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3250 + ... + 16156.

It is an arithmetic number, because the mean of its divisors is an integer number (16212448).

Almost surely, 2^125236621 is an apocalyptic number.

It is an amenable number.

125236621 is a deficient number, since it is larger than the sum of its proper divisors (4462963).

125236621 is a wasteful number, since it uses less digits than its factorization.

125236621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13251.

The product of its digits is 4320, while the sum is 28.

The square root of 125236621 is about 11190.9168971984. The cubic root of 125236621 is about 500.3152958020.

It can be divided in two parts, 1252 and 36621, that added together give a palindrome (37873).

The spelling of 125236621 in words is "one hundred twenty-five million, two hundred thirty-six thousand, six hundred twenty-one".