54197136 has 90 divisors (see below), whose sum is σ = 176463222. Its totient is φ = 15482880.

The previous prime is 54197107. The next prime is 54197141. The reversal of 54197136 is 63179145.

It can be written as a sum of positive squares in only one way, i.e., 49787136 + 4410000 = 7056^2 + 2100^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 54197136.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3216 + ... + 10896.

Almost surely, 2^54197136 is an apocalyptic number.

54197136 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54197136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88231611).

54197136 is an abundant number, since it is smaller than the sum of its proper divisors (122266086).

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

54197136 is a wasteful number, since it uses less digits than its factorization.

54197136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7709 (or 7693 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 54197136 is about 7361.8704145074. The cubic root of 54197136 is about 378.4357115645.

Subtracting 54197136 from its reverse (63179145), we obtain a square (8982009 = 2997²).

The spelling of 54197136 in words is "fifty-four million, one hundred ninety-seven thousand, one hundred thirty-six".