149493858 has 16 divisors (see below), whose sum is σ = 299422656. Its totient is φ = 49758800.

The previous prime is 149493857. The next prime is 149493863. The reversal of 149493858 is 858394941.

It is a self number, because there is not a number n which added to its sum of digits gives 149493858.

It is not an unprimeable number, because it can be changed into a prime (149493857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13566 + ... + 21977.

It is an arithmetic number, because the mean of its divisors is an integer number (18713916).

Almost surely, 2^149493858 is an apocalyptic number.

149493858 is an abundant number, since it is smaller than the sum of its proper divisors (149928798).

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

149493858 is a wasteful number, since it uses less digits than its factorization.

149493858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36249.

The product of its digits is 1244160, while the sum is 51.

The square root of 149493858 is about 12226.7680929999. The cubic root of 149493858 is about 530.7309932255.

The spelling of 149493858 in words is "one hundred forty-nine million, four hundred ninety-three thousand, eight hundred fifty-eight".