149251650 has 48 divisors (see below), whose sum is σ = 389632800. Its totient is φ = 37704960.

The previous prime is 149251637. The next prime is 149251681. The reversal of 149251650 is 56152941.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23335 + ... + 29034.

It is an arithmetic number, because the mean of its divisors is an integer number (8117350).

Almost surely, 2^149251650 is an apocalyptic number.

149251650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149251650 is an abundant number, since it is smaller than the sum of its proper divisors (240381150).

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

149251650 is a wasteful number, since it uses less digits than its factorization.

149251650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52403 (or 52398 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 149251650 is about 12216.8592526885. The cubic root of 149251650 is about 530.4442104769. Note that the first 3 decimals are identical.

The spelling of 149251650 in words is "one hundred forty-nine million, two hundred fifty-one thousand, six hundred fifty".