761020139 has 8 divisors (see below), whose sum is σ = 830411568. Its totient is φ = 691663360.

The previous prime is 761020133. The next prime is 761020171. The reversal of 761020139 is 931020167.

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 761020139 - 2²⁸ = 492584683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (761020133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63299 + ... + 74355.

It is an arithmetic number, because the mean of its divisors is an integer number (103801446).

Almost surely, 2^761020139 is an apocalyptic number.

761020139 is a deficient number, since it is larger than the sum of its proper divisors (69391429).

761020139 is a wasteful number, since it uses less digits than its factorization.

761020139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17325.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 761020139 is about 27586.5934649424. The cubic root of 761020139 is about 912.9886598661.

The spelling of 761020139 in words is "seven hundred sixty-one million, twenty thousand, one hundred thirty-nine".