149717854 has 16 divisors (see below), whose sum is σ = 263838960. Its totient is φ = 62818560.

The previous prime is 149717839. The next prime is 149717903. The reversal of 149717854 is 458717941.

It is a happy number.

149717854 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261459 + ... + 262030.

It is an arithmetic number, because the mean of its divisors is an integer number (16489935).

Almost surely, 2^149717854 is an apocalyptic number.

149717854 is a deficient number, since it is larger than the sum of its proper divisors (114121106).

149717854 is a wasteful number, since it uses less digits than its factorization.

149717854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523515.

The product of its digits is 282240, while the sum is 46.

The square root of 149717854 is about 12235.9247300725. The cubic root of 149717854 is about 530.9959367592.

The spelling of 149717854 in words is "one hundred forty-nine million, seven hundred seventeen thousand, eight hundred fifty-four".