154360139 has 2 divisors, whose sum is σ = 154360140. Its totient is φ = 154360138.

The previous prime is 154360133. The next prime is 154360159. The reversal of 154360139 is 931063451.

154360139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (931063451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154360139 - 2²⁴ = 137582923 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (154360133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77180069 + 77180070.

It is an arithmetic number, because the mean of its divisors is an integer number (77180070).

Almost surely, 2^154360139 is an apocalyptic number.

154360139 is a deficient number, since it is larger than the sum of its proper divisors (1).

154360139 is an equidigital number, since it uses as much as digits as its factorization.

154360139 is an evil number, because the sum of its binary digits is even.

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

The square root of 154360139 is about 12424.1755863317. The cubic root of 154360139 is about 536.4283478625.

The spelling of 154360139 in words is "one hundred fifty-four million, three hundred sixty thousand, one hundred thirty-nine".