154591139451 has 16 divisors (see below), whose sum is σ = 235606056704. Its totient is φ = 88323316704.

The previous prime is 154591139431. The next prime is 154591139471. The reversal of 154591139451 is 154931195451.

It is an interprime number because it is at equal distance from previous prime (154591139431) and next prime (154591139471).

It is not a de Polignac number, because 154591139451 - 2⁶ = 154591139387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 154591139451.

It is not an unprimeable number, because it can be changed into a prime (154591139431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471361 + ... + 728946.

It is an arithmetic number, because the mean of its divisors is an integer number (14725378544).

Almost surely, 2^154591139451 is an apocalyptic number.

154591139451 is a deficient number, since it is larger than the sum of its proper divisors (81014917253).

154591139451 is a wasteful number, since it uses less digits than its factorization.

154591139451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206450.

The product of its digits is 486000, while the sum is 48.

The spelling of 154591139451 in words is "one hundred fifty-four billion, five hundred ninety-one million, one hundred thirty-nine thousand, four hundred fifty-one".