54156031140 has 96 divisors (see below), whose sum is σ = 153256320000. Its totient is φ = 14288199552.

The previous prime is 54156031109. The next prime is 54156031199. The reversal of 54156031140 is 4113065145.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 54156031098 and 54156031107.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2124591 + ... + 2149929.

It is an arithmetic number, because the mean of its divisors is an integer number (1596420000).

Almost surely, 2^54156031140 is an apocalyptic number.

It is an amenable number.

54156031140 is an abundant number, since it is smaller than the sum of its proper divisors (99100288860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54156031140 is a wasteful number, since it uses less digits than its factorization.

54156031140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25729 (or 25727 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 54156031140 its reverse (4113065145), we get a palindrome (58269096285).

The spelling of 54156031140 in words is "fifty-four billion, one hundred fifty-six million, thirty-one thousand, one hundred forty".