7149691 has 2 divisors, whose sum is σ = 7149692. Its totient is φ = 7149690.

The previous prime is 7149677. The next prime is 7149713. The reversal of 7149691 is 1969417.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7149691 - 2⁷ = 7149563 is a prime.

It is a super-2 number, since 2×7149691² = 102236162790962, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7149691.

It is not a weakly prime, because it can be changed into another prime (7149601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3574845 + 3574846.

It is an arithmetic number, because the mean of its divisors is an integer number (3574846).

Almost surely, 2^7149691 is an apocalyptic number.

7149691 is a deficient number, since it is larger than the sum of its proper divisors (1).

7149691 is an equidigital number, since it uses as much as digits as its factorization.

7149691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 37.

The square root of 7149691 is about 2673.8906110759. The cubic root of 7149691 is about 192.6470771195.

The spelling of 7149691 in words is "seven million, one hundred forty-nine thousand, six hundred ninety-one".