1218970160 has 20 divisors (see below), whose sum is σ = 2834105808. Its totient is φ = 487588032.

The previous prime is 1218970157. The next prime is 1218970163. The reversal of 1218970160 is 610798121.

It is an interprime number because it is at equal distance from previous prime (1218970157) and next prime (1218970163).

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1218970160.

It is not an unprimeable number, because it can be changed into a prime (1218970163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7618484 + ... + 7618643.

Almost surely, 2^1218970160 is an apocalyptic number.

1218970160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1218970160 is an abundant number, since it is smaller than the sum of its proper divisors (1615135648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1218970160 is a wasteful number, since it uses less digits than its factorization.

1218970160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15237140 (or 15237134 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 35.

The square root of 1218970160 is about 34913.7531640470. The cubic root of 1218970160 is about 1068.2289857680.

The spelling of 1218970160 in words is "one billion, two hundred eighteen million, nine hundred seventy thousand, one hundred sixty".