149452290 has 224 divisors, whose sum is σ = 462732480. Its totient is φ = 34432128.

The previous prime is 149452273. The next prime is 149452301. The reversal of 149452290 is 92254941.

149452290 is a `hidden beast` number, since 1 + 49 + 4 + 522 + 90 = 666.

It is a congruent number.

It is an unprimeable number.

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 111 ways as a sum of consecutive naturals, for example, 1800589 + ... + 1800671.

It is an arithmetic number, because the mean of its divisors is an integer number (2065770).

Almost surely, 2^149452290 is an apocalyptic number.

149452290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 149452290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231366240).

149452290 is an abundant number, since it is smaller than the sum of its proper divisors (313280190).

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

149452290 is a wasteful number, since it uses less digits than its factorization.

149452290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 149452290 is about 12225.0680979698. The cubic root of 149452290 is about 530.6817972890.

The spelling of 149452290 in words is "one hundred forty-nine million, four hundred fifty-two thousand, two hundred ninety".