54212137 has 8 divisors (see below), whose sum is σ = 62007296. Its totient is φ = 46429632.

The previous prime is 54212117. The next prime is 54212143. The reversal of 54212137 is 73121245.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54212137 - 2¹¹ = 54210089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54212117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9313 + ... + 13969.

It is an arithmetic number, because the mean of its divisors is an integer number (7750912).

Almost surely, 2^54212137 is an apocalyptic number.

54212137 is the 4657-th heptagonal number.

It is an amenable number.

54212137 is a deficient number, since it is larger than the sum of its proper divisors (7795159).

54212137 is a wasteful number, since it uses less digits than its factorization.

54212137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6327.

The product of its digits is 1680, while the sum is 25.

The square root of 54212137 is about 7362.8891747737. The cubic root of 54212137 is about 378.4706235595.

The spelling of 54212137 in words is "fifty-four million, two hundred twelve thousand, one hundred thirty-seven".