18196954 has 4 divisors (see below), whose sum is σ = 27295434. Its totient is φ = 9098476.

The previous prime is 18196903. The next prime is 18196963. The reversal of 18196954 is 45969181.

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., 16621929 + 1575025 = 4077^2 + 1255^2 .

It is a super-2 number, since 2×18196954² = 662258269756232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18196954.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4549237 + ... + 4549240.

Almost surely, 2^18196954 is an apocalyptic number.

18196954 is a deficient number, since it is larger than the sum of its proper divisors (9098480).

18196954 is an equidigital number, since it uses as much as digits as its factorization.

18196954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9098479.

The product of its digits is 77760, while the sum is 43.

The square root of 18196954 is about 4265.7887898957. The cubic root of 18196954 is about 263.0265361862.

The spelling of 18196954 in words is "eighteen million, one hundred ninety-six thousand, nine hundred fifty-four".