981367215 has 8 divisors (see below), whose sum is σ = 1570187568. Its totient is φ = 523395840.

The previous prime is 981367201. The next prime is 981367229. The reversal of 981367215 is 512763189.

It is an interprime number because it is at equal distance from previous prime (981367201) and next prime (981367229).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 981367215 - 2¹³ = 981359023 is a prime.

It is a super-2 number, since 2×981367215² = 1926163221353712450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 32712226 + ... + 32712255.

It is an arithmetic number, because the mean of its divisors is an integer number (196273446).

Almost surely, 2^981367215 is an apocalyptic number.

981367215 is a deficient number, since it is larger than the sum of its proper divisors (588820353).

981367215 is a wasteful number, since it uses less digits than its factorization.

981367215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65424489.

The product of its digits is 90720, while the sum is 42.

The square root of 981367215 is about 31326.7811145671. The cubic root of 981367215 is about 993.7500916894.

It can be divided in two parts, 9813 and 67215, that added together give a triangular number (77028 = T₃₉₂).

The spelling of 981367215 in words is "nine hundred eighty-one million, three hundred sixty-seven thousand, two hundred fifteen".