154401213543 has 32 divisors (see below), whose sum is σ = 216950587392. Its totient is φ = 97486092000.

The previous prime is 154401213511. The next prime is 154401213553. The reversal of 154401213543 is 345312104451.

It is not a de Polignac number, because 154401213543 - 2⁵ = 154401213511 is a prime.

It is a super-2 number, since 2×154401213543² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154401213553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3174498 + ... + 3222768.

It is an arithmetic number, because the mean of its divisors is an integer number (6779705856).

Almost surely, 2^154401213543 is an apocalyptic number.

154401213543 is a deficient number, since it is larger than the sum of its proper divisors (62549373849).

154401213543 is a wasteful number, since it uses less digits than its factorization.

154401213543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48755.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 154401213543 its reverse (345312104451), we get a palindrome (499713317994).

The spelling of 154401213543 in words is "one hundred fifty-four billion, four hundred one million, two hundred thirteen thousand, five hundred forty-three".