202149144 has 48 divisors (see below), whose sum is σ = 548145000. Its totient is φ = 67302144.

The previous prime is 202149137. The next prime is 202149173. The reversal of 202149144 is 441941202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106992 + ... + 108864.

Almost surely, 2^202149144 is an apocalyptic number.

202149144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

202149144 is an abundant number, since it is smaller than the sum of its proper divisors (345995856).

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

202149144 is a wasteful number, since it uses less digits than its factorization.

202149144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3384 (or 3377 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 202149144 is about 14217.9163030312. The cubic root of 202149144 is about 586.8908007804.

The spelling of 202149144 in words is "two hundred two million, one hundred forty-nine thousand, one hundred forty-four".