154036139 has 16 divisors (see below), whose sum is σ = 164142720. Its totient is φ = 144291840.

The previous prime is 154036121. The next prime is 154036151. The reversal of 154036139 is 931630451.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154036139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154036109) 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, 419534 + ... + 419900.

It is an arithmetic number, because the mean of its divisors is an integer number (10258920).

Almost surely, 2^154036139 is an apocalyptic number.

154036139 is a deficient number, since it is larger than the sum of its proper divisors (10106581).

154036139 is a wasteful number, since it uses less digits than its factorization.

154036139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 154036139 is about 12411.1296423815. The cubic root of 154036139 is about 536.0527661631.

The spelling of 154036139 in words is "one hundred fifty-four million, thirty-six thousand, one hundred thirty-nine".