125672661 has 8 divisors (see below), whose sum is σ = 186181760. Its totient is φ = 83781756.

The previous prime is 125672629. The next prime is 125672663. The reversal of 125672661 is 166276521.

It is a happy number.

125672661 is a `hidden beast` number, since 12 + 567 + 26 + 61 = 666.

It is not a de Polignac number, because 125672661 - 2⁵ = 125672629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125672663) 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, 2327245 + ... + 2327298.

It is an arithmetic number, because the mean of its divisors is an integer number (23272720).

Almost surely, 2^125672661 is an apocalyptic number.

It is an amenable number.

125672661 is a deficient number, since it is larger than the sum of its proper divisors (60509099).

125672661 is an equidigital number, since it uses as much as digits as its factorization.

125672661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4654552 (or 4654546 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 125672661 is about 11210.3818400624. The cubic root of 125672661 is about 500.8952773335.

The spelling of 125672661 in words is "one hundred twenty-five million, six hundred seventy-two thousand, six hundred sixty-one".