154255002191 has 2 divisors, whose sum is σ = 154255002192. Its totient is φ = 154255002190.

The previous prime is 154255002173. The next prime is 154255002229. The reversal of 154255002191 is 191200552451.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 154255002191 - 2³⁰ = 153181260367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154255002131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77127501095 + 77127501096.

It is an arithmetic number, because the mean of its divisors is an integer number (77127501096).

Almost surely, 2^154255002191 is an apocalyptic number.

154255002191 is a deficient number, since it is larger than the sum of its proper divisors (1).

154255002191 is an equidigital number, since it uses as much as digits as its factorization.

154255002191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 35.

The spelling of 154255002191 in words is "one hundred fifty-four billion, two hundred fifty-five million, two thousand, one hundred ninety-one".