154311045421 has 24 divisors (see below), whose sum is σ = 169288146720. Its totient is φ = 140580737856.

The previous prime is 154311045391. The next prime is 154311045431. The reversal of 154311045421 is 124540113451.

It is not a de Polignac number, because 154311045421 - 2⁷ = 154311045293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154311045431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4848466 + ... + 4880188.

It is an arithmetic number, because the mean of its divisors is an integer number (7053672780).

Almost surely, 2^154311045421 is an apocalyptic number.

It is an amenable number.

154311045421 is a deficient number, since it is larger than the sum of its proper divisors (14977101299).

154311045421 is a wasteful number, since it uses less digits than its factorization.

154311045421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32125 (or 32112 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 154311045421 its reverse (124540113451), we get a palindrome (278851158872).

The spelling of 154311045421 in words is "one hundred fifty-four billion, three hundred eleven million, forty-five thousand, four hundred twenty-one".