125780677 has 4 divisors (see below), whose sum is σ = 137215296. Its totient is φ = 114346060.

The previous prime is 125780651. The next prime is 125780749. The reversal of 125780677 is 776087521.

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.

It is a cyclic number.

It is not a de Polignac number, because 125780677 - 2⁷ = 125780549 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 (125780617) 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, 5717293 + ... + 5717314.

It is an arithmetic number, because the mean of its divisors is an integer number (34303824).

Almost surely, 2^125780677 is an apocalyptic number.

It is an amenable number.

125780677 is a deficient number, since it is larger than the sum of its proper divisors (11434619).

125780677 is a wasteful number, since it uses less digits than its factorization.

125780677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11434618.

The product of its (nonzero) digits is 164640, while the sum is 43.

The square root of 125780677 is about 11215.1984824166. The cubic root of 125780677 is about 501.0387431974.

The spelling of 125780677 in words is "one hundred twenty-five million, seven hundred eighty thousand, six hundred seventy-seven".