149290979 has 2 divisors, whose sum is σ = 149290980. Its totient is φ = 149290978.

The previous prime is 149290951. The next prime is 149290993. The reversal of 149290979 is 979092941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149290979 - 2¹² = 149286883 is a prime.

It is not a weakly prime, because it can be changed into another prime (149290879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74645489 + 74645490.

It is an arithmetic number, because the mean of its divisors is an integer number (74645490).

Almost surely, 2^149290979 is an apocalyptic number.

149290979 is a deficient number, since it is larger than the sum of its proper divisors (1).

149290979 is an equidigital number, since it uses as much as digits as its factorization.

149290979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 50.

The square root of 149290979 is about 12218.4687665845. The cubic root of 149290979 is about 530.4907984782.

The spelling of 149290979 in words is "one hundred forty-nine million, two hundred ninety thousand, nine hundred seventy-nine".