149685501 has 16 divisors (see below), whose sum is σ = 235958400. Its totient is φ = 82584768.

The previous prime is 149685469. The next prime is 149685509. The reversal of 149685501 is 105586941.

149685501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 149685501 - 2⁵ = 149685469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149685501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149685509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122286 + ... + 123503.

It is an arithmetic number, because the mean of its divisors is an integer number (14747400).

Almost surely, 2^149685501 is an apocalyptic number.

It is an amenable number.

149685501 is a deficient number, since it is larger than the sum of its proper divisors (86272899).

149685501 is a wasteful number, since it uses less digits than its factorization.

149685501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245828.

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 149685501 is about 12234.6026089939. The cubic root of 149685501 is about 530.9576858121.

The spelling of 149685501 in words is "one hundred forty-nine million, six hundred eighty-five thousand, five hundred one".