154011139 has 2 divisors, whose sum is σ = 154011140. Its totient is φ = 154011138.

The previous prime is 154011133. The next prime is 154011149. The reversal of 154011139 is 931110451.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 154011139 - 2⁹ = 154010627 is a prime.

It is not a weakly prime, because it can be changed into another prime (154011133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77005569 + 77005570.

It is an arithmetic number, because the mean of its divisors is an integer number (77005570).

Almost surely, 2^154011139 is an apocalyptic number.

154011139 is a deficient number, since it is larger than the sum of its proper divisors (1).

154011139 is an equidigital number, since it uses as much as digits as its factorization.

154011139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 154011139 is about 12410.1224409754. The cubic root of 154011139 is about 536.0237642152.

The spelling of 154011139 in words is "one hundred fifty-four million, eleven thousand, one hundred thirty-nine".