149339515 has 16 divisors (see below), whose sum is σ = 194392800. Its totient is φ = 109481472.

The previous prime is 149339513. The next prime is 149339527. The reversal of 149339515 is 515933941.

It is a cyclic number.

It is not a de Polignac number, because 149339515 - 2¹ = 149339513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149339513) 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, 771 + ... + 17299.

It is an arithmetic number, because the mean of its divisors is an integer number (12149550).

Almost surely, 2^149339515 is an apocalyptic number.

149339515 is a deficient number, since it is larger than the sum of its proper divisors (45053285).

149339515 is a wasteful number, since it uses less digits than its factorization.

149339515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16686.

The product of its digits is 72900, while the sum is 40.

The square root of 149339515 is about 12220.4547787715. The cubic root of 149339515 is about 530.5482815487.

The spelling of 149339515 in words is "one hundred forty-nine million, three hundred thirty-nine thousand, five hundred fifteen".