149650890 has 16 divisors (see below), whose sum is σ = 359162208. Its totient is φ = 39906896.

The previous prime is 149650883. The next prime is 149650913. The reversal of 149650890 is 98056941.

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 7 ways as a sum of consecutive naturals, for example, 2494152 + ... + 2494211.

It is an arithmetic number, because the mean of its divisors is an integer number (22447638).

Almost surely, 2^149650890 is an apocalyptic number.

149650890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149650890 is an abundant number, since it is smaller than the sum of its proper divisors (209511318).

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

149650890 is a wasteful number, since it uses less digits than its factorization.

149650890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4988373.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 149650890 is about 12233.1880554498. The cubic root of 149650890 is about 530.9167591294.

The spelling of 149650890 in words is "one hundred forty-nine million, six hundred fifty thousand, eight hundred ninety".