149190738 has 16 divisors (see below), whose sum is σ = 302584896. Its totient is φ = 49029680.

The previous prime is 149190733. The next prime is 149190751. The reversal of 149190738 is 837091941.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 149190738.

It is not an unprimeable number, because it can be changed into a prime (149190733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174681 + ... + 175532.

It is an arithmetic number, because the mean of its divisors is an integer number (18911556).

Almost surely, 2^149190738 is an apocalyptic number.

149190738 is an abundant number, since it is smaller than the sum of its proper divisors (153394158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149190738 is a wasteful number, since it uses less digits than its factorization.

149190738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350289.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 149190738 is about 12214.3660498611. The cubic root of 149190738 is about 530.3720397187.

It can be divided in two parts, 1491 and 90738, that added together give a palindrome (92229).

The spelling of 149190738 in words is "one hundred forty-nine million, one hundred ninety thousand, seven hundred thirty-eight".