1451130691 has 2 divisors, whose sum is σ = 1451130692. Its totient is φ = 1451130690.

The previous prime is 1451130679. The next prime is 1451130721. The reversal of 1451130691 is 1960311541.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1451130691 is a prime.

It is not a weakly prime, because it can be changed into another prime (1451130601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 725565345 + 725565346.

It is an arithmetic number, because the mean of its divisors is an integer number (725565346).

Almost surely, 2^1451130691 is an apocalyptic number.

1451130691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1451130691 is an equidigital number, since it uses as much as digits as its factorization.

1451130691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 1451130691 is about 38093.7093363196. The cubic root of 1451130691 is about 1132.1453204352.

The spelling of 1451130691 in words is "one billion, four hundred fifty-one million, one hundred thirty thousand, six hundred ninety-one".