77030131 has 4 divisors (see below), whose sum is σ = 77185000. Its totient is φ = 76875264.

The previous prime is 77030113. The next prime is 77030137. The reversal of 77030131 is 13103077.

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 77030131 - 2⁹ = 77029619 is a prime.

It is a super-2 number, since 2×77030131² = 11867282163754322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77030137) 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, 76686 + ... + 77683.

It is an arithmetic number, because the mean of its divisors is an integer number (19296250).

Almost surely, 2^77030131 is an apocalyptic number.

77030131 is a deficient number, since it is larger than the sum of its proper divisors (154869).

77030131 is a wasteful number, since it uses less digits than its factorization.

77030131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154868.

The product of its (nonzero) digits is 441, while the sum is 22.

The square root of 77030131 is about 8776.6810925315. The cubic root of 77030131 is about 425.4875714575.

The spelling of 77030131 in words is "seventy-seven million, thirty thousand, one hundred thirty-one".