149564994 has 8 divisors (see below), whose sum is σ = 299130000. Its totient is φ = 49854996.

The previous prime is 149564957. The next prime is 149565001. The reversal of 149564994 is 499465941.

It is a sphenic number, since it is the product of 3 distinct primes.

149564994 is an admirable number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12463744 + ... + 12463755.

It is an arithmetic number, because the mean of its divisors is an integer number (37391250).

Almost surely, 2^149564994 is an apocalyptic number.

149564994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

149564994 is a wasteful number, since it uses less digits than its factorization.

149564994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24927504.

The product of its digits is 1399680, while the sum is 51.

The square root of 149564994 is about 12229.6767741425. The cubic root of 149564994 is about 530.8151618856.

The spelling of 149564994 in words is "one hundred forty-nine million, five hundred sixty-four thousand, nine hundred ninety-four".