18953051 has 8 divisors (see below), whose sum is σ = 21485520. Its totient is φ = 16574112.

The previous prime is 18953047. The next prime is 18953083. The reversal of 18953051 is 15035981.

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 18953051 - 2² = 18953047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18952999 and 18953017.

It is not an unprimeable number, because it can be changed into a prime (18953021) 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, 38120 + ... + 38613.

It is an arithmetic number, because the mean of its divisors is an integer number (2685690).

Almost surely, 2^18953051 is an apocalyptic number.

18953051 is a deficient number, since it is larger than the sum of its proper divisors (2532469).

18953051 is a wasteful number, since it uses less digits than its factorization.

18953051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76765.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 18953051 is about 4353.5101929363. The cubic root of 18953051 is about 266.6201962426.

The spelling of 18953051 in words is "eighteen million, nine hundred fifty-three thousand, fifty-one".