761125381 has 2 divisors, whose sum is σ = 761125382. Its totient is φ = 761125380.

The previous prime is 761125373. The next prime is 761125441. The reversal of 761125381 is 183521167.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 727380900 + 33744481 = 26970^2 + 5809^2 .

It is a cyclic number.

It is not a de Polignac number, because 761125381 - 2³ = 761125373 is a prime.

It is a super-2 number, since 2×761125381² = 1158623691204790322, which contains 22 as substring.

It is equal to p_39247243 and since 761125381 and 39247243 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (761125301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380562690 + 380562691.

It is an arithmetic number, because the mean of its divisors is an integer number (380562691).

Almost surely, 2^761125381 is an apocalyptic number.

761125381 is the 17449-th centered pentagonal number.

It is an amenable number.

761125381 is a deficient number, since it is larger than the sum of its proper divisors (1).

761125381 is an equidigital number, since it uses as much as digits as its factorization.

761125381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 34.

The square root of 761125381 is about 27588.5008835203. The cubic root of 761125381 is about 913.0307438701.

The spelling of 761125381 in words is "seven hundred sixty-one million, one hundred twenty-five thousand, three hundred eighty-one".