54131040 has 72 divisors (see below), whose sum is σ = 184727088. Its totient is φ = 14434560.

The previous prime is 54131027. The next prime is 54131041. The reversal of 54131040 is 4013145.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54131041) 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, 17356 + ... + 20235.

It is an arithmetic number, because the mean of its divisors is an integer number (2565654).

Almost surely, 2^54131040 is an apocalyptic number.

It is an amenable number.

54131040 is an abundant number, since it is smaller than the sum of its proper divisors (130596048).

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

54131040 is a wasteful number, since it uses less digits than its factorization.

54131040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37612 (or 37601 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 54131040 is about 7357.3799684399. The cubic root of 54131040 is about 378.2818088324.

Adding to 54131040 its reverse (4013145), we get a palindrome (58144185).

The spelling of 54131040 in words is "fifty-four million, one hundred thirty-one thousand, forty".