149051790 has 24 divisors (see below), whose sum is σ = 387534888. Its totient is φ = 39747120.

The previous prime is 149051701. The next prime is 149051809. The reversal of 149051790 is 97150941.

It is a super-2 number, since 2×149051790² = 44432872204408200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 827976 + ... + 828155.

It is an arithmetic number, because the mean of its divisors is an integer number (16147287).

Almost surely, 2^149051790 is an apocalyptic number.

149051790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149051790 is an abundant number, since it is smaller than the sum of its proper divisors (238483098).

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

149051790 is a wasteful number, since it uses less digits than its factorization.

149051790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656144 (or 1656141 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 149051790 is about 12208.6768324827. The cubic root of 149051790 is about 530.2073355170.

The spelling of 149051790 in words is "one hundred forty-nine million, fifty-one thousand, seven hundred ninety".