18951082 has 4 divisors (see below), whose sum is σ = 28426626. Its totient is φ = 9475540.

The previous prime is 18951071. The next prime is 18951131. The reversal of 18951082 is 28015981.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18931201 + 19881 = 4351^2 + 141^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4737769 + ... + 4737772.

Almost surely, 2^18951082 is an apocalyptic number.

18951082 is a deficient number, since it is larger than the sum of its proper divisors (9475544).

18951082 is an equidigital number, since it uses as much as digits as its factorization.

18951082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9475543.

The product of its (nonzero) digits is 5760, while the sum is 34.

The square root of 18951082 is about 4353.2840477047. The cubic root of 18951082 is about 266.6109630177.

The spelling of 18951082 in words is "eighteen million, nine hundred fifty-one thousand, eighty-two".