766451131 has 2 divisors, whose sum is σ = 766451132. Its totient is φ = 766451130.

The previous prime is 766451113. The next prime is 766451173. The reversal of 766451131 is 131154667.

Together with previous prime (766451113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 766451131 - 2¹¹ = 766449083 is a prime.

It is a super-2 number, since 2×766451131² = 1174894672422358322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (766451111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383225565 + 383225566.

It is an arithmetic number, because the mean of its divisors is an integer number (383225566).

Almost surely, 2^766451131 is an apocalyptic number.

766451131 is a deficient number, since it is larger than the sum of its proper divisors (1).

766451131 is an equidigital number, since it uses as much as digits as its factorization.

766451131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 766451131 is about 27684.8538193721. The cubic root of 766451131 is about 915.1553504132.

The spelling of 766451131 in words is "seven hundred sixty-six million, four hundred fifty-one thousand, one hundred thirty-one".