154014139 has 2 divisors, whose sum is σ = 154014140. Its totient is φ = 154014138.

The previous prime is 154014127. The next prime is 154014143. The reversal of 154014139 is 931410451.

154014139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (931410451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154014139 - 2⁹ = 154013627 is a prime.

It is a super-2 number, since 2×154014139² = 47440710023822642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (154014199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77007069 + 77007070.

It is an arithmetic number, because the mean of its divisors is an integer number (77007070).

Almost surely, 2^154014139 is an apocalyptic number.

154014139 is a deficient number, since it is larger than the sum of its proper divisors (1).

154014139 is an equidigital number, since it uses as much as digits as its factorization.

154014139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 154014139 is about 12410.2433094601. The cubic root of 154014139 is about 536.0272446146.

The spelling of 154014139 in words is "one hundred fifty-four million, fourteen thousand, one hundred thirty-nine".