57148073 has 4 divisors (see below), whose sum is σ = 57836688. Its totient is φ = 56459460.

The previous prime is 57148051. The next prime is 57148079. The reversal of 57148073 is 37084175.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57148073 - 2¹⁸ = 56885929 is a prime.

It is a super-2 number, since 2×57148073² = 6531804495226658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57148079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344183 + ... + 344348.

It is an arithmetic number, because the mean of its divisors is an integer number (14459172).

Almost surely, 2^57148073 is an apocalyptic number.

It is an amenable number.

57148073 is a deficient number, since it is larger than the sum of its proper divisors (688615).

57148073 is an equidigital number, since it uses as much as digits as its factorization.

57148073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688614.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 57148073 is about 7559.6344488341. The cubic root of 57148073 is about 385.1830759138.

The spelling of 57148073 in words is "fifty-seven million, one hundred forty-eight thousand, seventy-three".