761945139 has 12 divisors (see below), whose sum is σ = 1100899800. Its totient is φ = 507819264.

The previous prime is 761945137. The next prime is 761945141. The reversal of 761945139 is 931549167.

It is an interprime number because it is at equal distance from previous prime (761945137) and next prime (761945141).

It is not a de Polignac number, because 761945139 - 2¹ = 761945137 is a prime.

It is a super-3 number, since 3×761945139³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 761945094 and 761945103.

It is not an unprimeable number, because it can be changed into a prime (761945131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28732 + ... + 48470.

It is an arithmetic number, because the mean of its divisors is an integer number (91741650).

Almost surely, 2^761945139 is an apocalyptic number.

761945139 is a deficient number, since it is larger than the sum of its proper divisors (338954661).

761945139 is a wasteful number, since it uses less digits than its factorization.

761945139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24034 (or 24031 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 761945139 is about 27603.3537636281. The cubic root of 761945139 is about 913.3584146799.

The spelling of 761945139 in words is "seven hundred sixty-one million, nine hundred forty-five thousand, one hundred thirty-nine".