125077621 has 8 divisors (see below), whose sum is σ = 126957600. Its totient is φ = 123211920.

The previous prime is 125077607. The next prime is 125077639. The reversal of 125077621 is 126770521.

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 125077621 - 2¹³ = 125069429 is a prime.

It is a super-2 number, since 2×125077621² = 31288822550039282, 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 (125077021) 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, 14775 + ... + 21643.

It is an arithmetic number, because the mean of its divisors is an integer number (15869700).

Almost surely, 2^125077621 is an apocalyptic number.

It is an amenable number.

125077621 is a deficient number, since it is larger than the sum of its proper divisors (1879979).

125077621 is a wasteful number, since it uses less digits than its factorization.

125077621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7139.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 125077621 is about 11183.8106654217. The cubic root of 125077621 is about 500.1034732518.

The spelling of 125077621 in words is "one hundred twenty-five million, seventy-seven thousand, six hundred twenty-one".