18147070 has 16 divisors (see below), whose sum is σ = 33113520. Its totient is φ = 7159104.

The previous prime is 18147053. The next prime is 18147089. The reversal of 18147070 is 7074181.

It is a super-2 number, since 2×18147070² = 658632299169800, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11700 + ... + 13159.

It is an arithmetic number, because the mean of its divisors is an integer number (2069595).

Almost surely, 2^18147070 is an apocalyptic number.

18147070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18147070 is a deficient number, since it is larger than the sum of its proper divisors (14966450).

18147070 is a wasteful number, since it uses less digits than its factorization.

18147070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24939.

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 18147070 is about 4259.9377929730. The cubic root of 18147070 is about 262.7859680202.

The spelling of 18147070 in words is "eighteen million, one hundred forty-seven thousand, seventy".