149179999 has 2 divisors, whose sum is σ = 149180000. Its totient is φ = 149179998.

The previous prime is 149179969. The next prime is 149180027. The reversal of 149179999 is 999971941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149179999 - 2⁷ = 149179871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149179939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74589999 + 74590000.

It is an arithmetic number, because the mean of its divisors is an integer number (74590000).

Almost surely, 2^149179999 is an apocalyptic number.

149179999 is a deficient number, since it is larger than the sum of its proper divisors (1).

149179999 is an equidigital number, since it uses as much as digits as its factorization.

149179999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1653372, while the sum is 58.

The square root of 149179999 is about 12213.9264366542. The cubic root of 149179999 is about 530.3593137232.

The spelling of 149179999 in words is "one hundred forty-nine million, one hundred seventy-nine thousand, nine hundred ninety-nine".