149425579 has 2 divisors, whose sum is σ = 149425580. Its totient is φ = 149425578.

The previous prime is 149425541. The next prime is 149425609. The reversal of 149425579 is 975524941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149425579 - 2¹¹ = 149423531 is a prime.

It is not a weakly prime, because it can be changed into another prime (149422579) 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, 74712789 + 74712790.

It is an arithmetic number, because the mean of its divisors is an integer number (74712790).

Almost surely, 2^149425579 is an apocalyptic number.

149425579 is a deficient number, since it is larger than the sum of its proper divisors (1).

149425579 is an equidigital number, since it uses as much as digits as its factorization.

149425579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 46.

The square root of 149425579 is about 12223.9755808002. The cubic root of 149425579 is about 530.6501798722.

The spelling of 149425579 in words is "one hundred forty-nine million, four hundred twenty-five thousand, five hundred seventy-nine".