149401790 has 16 divisors (see below), whose sum is σ = 280615968. Its totient is φ = 57162336.

The previous prime is 149401781. The next prime is 149401841. The reversal of 149401790 is 97104941.

It is a self number, because there is not a number n which added to its sum of digits gives 149401790.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324557 + ... + 325016.

It is an arithmetic number, because the mean of its divisors is an integer number (17538498).

Almost surely, 2^149401790 is an apocalyptic number.

149401790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149401790 is a deficient number, since it is larger than the sum of its proper divisors (131214178).

149401790 is a wasteful number, since it uses less digits than its factorization.

149401790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649603.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 149401790 is about 12223.0024952955. The cubic root of 149401790 is about 530.6220180113.

The spelling of 149401790 in words is "one hundred forty-nine million, four hundred one thousand, seven hundred ninety".