149655889 has 8 divisors (see below), whose sum is σ = 151693920. Its totient is φ = 147623616.

The previous prime is 149655887. The next prime is 149655901. The reversal of 149655889 is 988556941.

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

It is a cyclic number.

It is not a de Polignac number, because 149655889 - 2¹ = 149655887 is a prime.

It is a super-2 number, since 2×149655889² = 44793770224760642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149655887) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 82854 + ... + 84640.

It is an arithmetic number, because the mean of its divisors is an integer number (18961740).

Almost surely, 2^149655889 is an apocalyptic number.

It is an amenable number.

149655889 is a deficient number, since it is larger than the sum of its proper divisors (2038031).

149655889 is a wasteful number, since it uses less digits than its factorization.

149655889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879.

The product of its digits is 3110400, while the sum is 55.

The square root of 149655889 is about 12233.3923749711. The cubic root of 149655889 is about 530.9226707176.

It can be divided in two parts, 149655 and 889, that added together give a square (150544 = 388²).

The spelling of 149655889 in words is "one hundred forty-nine million, six hundred fifty-five thousand, eight hundred eighty-nine".