761139601 has 4 divisors (see below), whose sum is σ = 801199600. Its totient is φ = 721079604.

The previous prime is 761139583. The next prime is 761139607. The reversal of 761139601 is 106931167.

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 761139601 - 2⁵ = 761139569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (761139607) 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, 20029971 + ... + 20030008.

It is an arithmetic number, because the mean of its divisors is an integer number (200299900).

Almost surely, 2^761139601 is an apocalyptic number.

It is an amenable number.

761139601 is a deficient number, since it is larger than the sum of its proper divisors (40059999).

761139601 is a wasteful number, since it uses less digits than its factorization.

761139601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40059998.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 761139601 is about 27588.7585983857. The cubic root of 761139601 is about 913.0364298436.

The spelling of 761139601 in words is "seven hundred sixty-one million, one hundred thirty-nine thousand, six hundred one".