149997450 has 24 divisors (see below), whose sum is σ = 371994048. Its totient is φ = 39999280.

The previous prime is 149997431. The next prime is 149997481. The reversal of 149997450 is 54799941.

It is a self number, because there is not a number n which added to its sum of digits gives 149997450.

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 11 ways as a sum of consecutive naturals, for example, 499842 + ... + 500141.

It is an arithmetic number, because the mean of its divisors is an integer number (15499752).

Almost surely, 2^149997450 is an apocalyptic number.

149997450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149997450 is an abundant number, since it is smaller than the sum of its proper divisors (221996598).

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

149997450 is a wasteful number, since it uses less digits than its factorization.

149997450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999998 (or 999993 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 48.

The square root of 149997450 is about 12247.3446101594. The cubic root of 149997450 is about 531.3262737083.

The spelling of 149997450 in words is "one hundred forty-nine million, nine hundred ninety-seven thousand, four hundred fifty".