149253890 has 32 divisors (see below), whose sum is σ = 275840640. Its totient is φ = 58126464.

The previous prime is 149253889. The next prime is 149253913. The reversal of 149253890 is 98352941.

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 15 ways as a sum of consecutive naturals, for example, 58379 + ... + 60881.

It is an arithmetic number, because the mean of its divisors is an integer number (8620020).

Almost surely, 2^149253890 is an apocalyptic number.

149253890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149253890 is a deficient number, since it is larger than the sum of its proper divisors (126586750).

149253890 is a wasteful number, since it uses less digits than its factorization.

149253890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2666.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 149253890 is about 12216.9509289348. The cubic root of 149253890 is about 530.4468641362.

The spelling of 149253890 in words is "one hundred forty-nine million, two hundred fifty-three thousand, eight hundred ninety".