9018146 has 4 divisors (see below), whose sum is σ = 13527222. Its totient is φ = 4509072.

The previous prime is 9018131. The next prime is 9018161. The reversal of 9018146 is 6418109.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6418109 = 1187 ⋅5407.

It is an interprime number because it is at equal distance from previous prime (9018131) and next prime (9018161).

It can be written as a sum of positive squares in only one way, i.e., 8439025 + 579121 = 2905^2 + 761^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2254535 + ... + 2254538.

Almost surely, 2^9018146 is an apocalyptic number.

9018146 is a deficient number, since it is larger than the sum of its proper divisors (4509076).

9018146 is a wasteful number, since it uses less digits than its factorization.

9018146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4509075.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 9018146 is about 3003.0228104362. The cubic root of 9018146 is about 208.1480854973.

The spelling of 9018146 in words is "nine million, eighteen thousand, one hundred forty-six".