1215718230 has 32 divisors (see below), whose sum is σ = 3071289600. Its totient is φ = 307128672.

The previous prime is 1215718223. The next prime is 1215718241. The reversal of 1215718230 is 328175121.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1065850 + ... + 1066989.

It is an arithmetic number, because the mean of its divisors is an integer number (95977800).

Almost surely, 2^1215718230 is an apocalyptic number.

1215718230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1215718230 is an abundant number, since it is smaller than the sum of its proper divisors (1855571370).

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

1215718230 is a wasteful number, since it uses less digits than its factorization.

1215718230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132868.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 1215718230 is about 34867.1511597951. The cubic root of 1215718230 is about 1067.2782106275.

The spelling of 1215718230 in words is "one billion, two hundred fifteen million, seven hundred eighteen thousand, two hundred thirty".