149616990 has 32 divisors (see below), whose sum is σ = 398979360. Its totient is φ = 39897792.

The previous prime is 149616967. The next prime is 149617007. The reversal of 149616990 is 99616941.

149616990 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276799 + ... + 277338.

It is an arithmetic number, because the mean of its divisors is an integer number (12468105).

Almost surely, 2^149616990 is an apocalyptic number.

149616990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149616990 is an abundant number, since it is smaller than the sum of its proper divisors (249362370).

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

149616990 is a wasteful number, since it uses less digits than its factorization.

149616990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554153 (or 554147 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 149616990 is about 12231.8024019357. The cubic root of 149616990 is about 530.8766670695.

The spelling of 149616990 in words is "one hundred forty-nine million, six hundred sixteen thousand, nine hundred ninety".