1215672160 has 24 divisors (see below), whose sum is σ = 2872025856. Its totient is φ = 486268800.

The previous prime is 1215672151. The next prime is 1215672169. The reversal of 1215672160 is 612765121.

It is an interprime number because it is at equal distance from previous prime (1215672151) and next prime (1215672169).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215672169) 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, 3798816 + ... + 3799135.

It is an arithmetic number, because the mean of its divisors is an integer number (119667744).

Almost surely, 2^1215672160 is an apocalyptic number.

1215672160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1215672160 is an abundant number, since it is smaller than the sum of its proper divisors (1656353696).

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

1215672160 is an equidigital number, since it uses as much as digits as its factorization.

1215672160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7597966 (or 7597958 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 1215672160 is about 34866.4905030604. The cubic root of 1215672160 is about 1067.2647288500.

The spelling of 1215672160 in words is "one billion, two hundred fifteen million, six hundred seventy-two thousand, one hundred sixty".