1018162906 has 4 divisors (see below), whose sum is σ = 1527244362. Its totient is φ = 509081452.

The previous prime is 1018162903. The next prime is 1018162949. The reversal of 1018162906 is 6092618101.

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., 530150625 + 488012281 = 23025^2 + 22091^2 .

It is not an unprimeable number, because it can be changed into a prime (1018162903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254540725 + ... + 254540728.

Almost surely, 2^1018162906 is an apocalyptic number.

1018162906 is a deficient number, since it is larger than the sum of its proper divisors (509081456).

1018162906 is an equidigital number, since it uses as much as digits as its factorization.

1018162906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509081455.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 1018162906 is about 31908.6650613905. The cubic root of 1018162906 is about 1006.0180128707.

The spelling of 1018162906 in words is "one billion, eighteen million, one hundred sixty-two thousand, nine hundred six".