149665450 has 48 divisors (see below), whose sum is σ = 321568704. Its totient is φ = 51219200.

The previous prime is 149665447. The next prime is 149665463. The reversal of 149665450 is 54566941.

It is a happy 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, 1347 + ... + 17353.

It is an arithmetic number, because the mean of its divisors is an integer number (6699348).

Almost surely, 2^149665450 is an apocalyptic number.

149665450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149665450 is an abundant number, since it is smaller than the sum of its proper divisors (171903254).

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

149665450 is a wasteful number, since it uses less digits than its factorization.

149665450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16047 (or 16042 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 149665450 is about 12233.7831434107. The cubic root of 149665450 is about 530.9339767513.

The spelling of 149665450 in words is "one hundred forty-nine million, six hundred sixty-five thousand, four hundred fifty".