7512991 has 2 divisors, whose sum is σ = 7512992. Its totient is φ = 7512990.

The previous prime is 7512977. The next prime is 7513021. The reversal of 7512991 is 1992157.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7512991 - 2⁷ = 7512863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7512931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3756495 + 3756496.

It is an arithmetic number, because the mean of its divisors is an integer number (3756496).

Almost surely, 2^7512991 is an apocalyptic number.

7512991 is a deficient number, since it is larger than the sum of its proper divisors (1).

7512991 is an equidigital number, since it uses as much as digits as its factorization.

7512991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5670, while the sum is 34.

The square root of 7512991 is about 2740.9835825849. The cubic root of 7512991 is about 195.8563347461.

The spelling of 7512991 in words is "seven million, five hundred twelve thousand, nine hundred ninety-one".