149977009 has 32 divisors (see below), whose sum is σ = 202245120. Its totient is φ = 107799552.

The previous prime is 149977001. The next prime is 149977027. The reversal of 149977009 is 900779941.

It is not a de Polignac number, because 149977009 - 2³ = 149977001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149977009.

It is not an unprimeable number, because it can be changed into a prime (149977001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43192 + ... + 46534.

It is an arithmetic number, because the mean of its divisors is an integer number (6320160).

Almost surely, 2^149977009 is an apocalyptic number.

It is an amenable number.

149977009 is a deficient number, since it is larger than the sum of its proper divisors (52268111).

149977009 is a wasteful number, since it uses less digits than its factorization.

149977009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3409.

The product of its (nonzero) digits is 142884, while the sum is 46.

The square root of 149977009 is about 12246.5100743028. The cubic root of 149977009 is about 531.3021370007.

The spelling of 149977009 in words is "one hundred forty-nine million, nine hundred seventy-seven thousand, nine".