761388137 has 2 divisors, whose sum is σ = 761388138. Its totient is φ = 761388136.

The previous prime is 761388101. The next prime is 761388151. The reversal of 761388137 is 731883167.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 742889536 + 18498601 = 27256^2 + 4301^2 .

It is a cyclic number.

It is not a de Polignac number, because 761388137 - 2⁶ = 761388073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (761388037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380694068 + 380694069.

It is an arithmetic number, because the mean of its divisors is an integer number (380694069).

Almost surely, 2^761388137 is an apocalyptic number.

It is an amenable number.

761388137 is a deficient number, since it is larger than the sum of its proper divisors (1).

761388137 is an equidigital number, since it uses as much as digits as its factorization.

761388137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 44.

The square root of 761388137 is about 27593.2625291030. The cubic root of 761388137 is about 913.1357973916.

The spelling of 761388137 in words is "seven hundred sixty-one million, three hundred eighty-eight thousand, one hundred thirty-seven".