149654899 has 12 divisors (see below), whose sum is σ = 156404352. Its totient is φ = 143091360.

The previous prime is 149654867. The next prime is 149654917. The reversal of 149654899 is 998456941.

It is not a de Polignac number, because 149654899 - 2⁵ = 149654867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149654809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137134 + ... + 138220.

It is an arithmetic number, because the mean of its divisors is an integer number (13033696).

Almost surely, 2^149654899 is an apocalyptic number.

149654899 is a deficient number, since it is larger than the sum of its proper divisors (6749453).

149654899 is an equidigital number, since it uses as much as digits as its factorization.

149654899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246 (or 1185 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 55.

The square root of 149654899 is about 12233.3519118842. The cubic root of 149654899 is about 530.9214999994.

The spelling of 149654899 in words is "one hundred forty-nine million, six hundred fifty-four thousand, eight hundred ninety-nine".