149388911 has 16 divisors (see below), whose sum is σ = 181558080. Its totient is φ = 119992320.

The previous prime is 149388857. The next prime is 149388917. The reversal of 149388911 is 119883941.

It is not a de Polignac number, because 149388911 - 2⁶ = 149388847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149388917) 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 in 15 ways as a sum of consecutive naturals, for example, 26075 + ... + 31283.

It is an arithmetic number, because the mean of its divisors is an integer number (11347380).

Almost surely, 2^149388911 is an apocalyptic number.

149388911 is a deficient number, since it is larger than the sum of its proper divisors (32169169).

149388911 is a wasteful number, since it uses less digits than its factorization.

149388911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5474.

The product of its digits is 62208, while the sum is 44.

The square root of 149388911 is about 12222.4756493928. The cubic root of 149388911 is about 530.6067703641.

The spelling of 149388911 in words is "one hundred forty-nine million, three hundred eighty-eight thousand, nine hundred eleven".