154313990091 has 12 divisors (see below), whose sum is σ = 232589202768. Its totient is φ = 98403123984.

The previous prime is 154313990081. The next prime is 154313990141. The reversal of 154313990091 is 190099313451.

154313990091 is a `hidden beast` number, since 1 + 543 + 13 + 9 + 9 + 0 + 0 + 91 = 666.

It is not a de Polignac number, because 154313990091 - 2¹⁸ = 154313727947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (154313990041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 372738900 + ... + 372739313.

It is an arithmetic number, because the mean of its divisors is an integer number (19382433564).

Almost surely, 2^154313990091 is an apocalyptic number.

154313990091 is a deficient number, since it is larger than the sum of its proper divisors (78275212677).

154313990091 is a wasteful number, since it uses less digits than its factorization.

154313990091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745478242 (or 745478239 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 45.

The spelling of 154313990091 in words is "one hundred fifty-four billion, three hundred thirteen million, nine hundred ninety thousand, ninety-one".