74857051 has 4 divisors (see below), whose sum is σ = 75135600. Its totient is φ = 74578504.

The previous prime is 74857049. The next prime is 74857087. The reversal of 74857051 is 15075847.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15075847 = 1459 ⋅10333.

It is a cyclic number.

It is not a de Polignac number, because 74857051 - 2¹ = 74857049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74857051.

It is not an unprimeable number, because it can be changed into a prime (74857151) 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, 138871 + ... + 139408.

It is an arithmetic number, because the mean of its divisors is an integer number (18783900).

Almost surely, 2^74857051 is an apocalyptic number.

74857051 is a deficient number, since it is larger than the sum of its proper divisors (278549).

74857051 is a wasteful number, since it uses less digits than its factorization.

74857051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278548.

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 74857051 is about 8651.9969371238. The cubic root of 74857051 is about 421.4482336786.

The spelling of 74857051 in words is "seventy-four million, eight hundred fifty-seven thousand, fifty-one".