1215970953 has 8 divisors (see below), whose sum is σ = 1622555616. Its totient is φ = 810016800.

The previous prime is 1215970937. The next prime is 1215970961. The reversal of 1215970953 is 3590795121.

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

It is not a de Polignac number, because 1215970953 - 2⁴ = 1215970937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1215970963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153108 + ... + 160853.

It is an arithmetic number, because the mean of its divisors is an integer number (202819452).

Almost surely, 2^1215970953 is an apocalyptic number.

It is an amenable number.

1215970953 is a deficient number, since it is larger than the sum of its proper divisors (406584663).

1215970953 is a wasteful number, since it uses less digits than its factorization.

1215970953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315255.

The product of its (nonzero) digits is 85050, while the sum is 42.

The square root of 1215970953 is about 34870.7750559118. The cubic root of 1215970953 is about 1067.3521606204.

The spelling of 1215970953 in words is "one billion, two hundred fifteen million, nine hundred seventy thousand, nine hundred fifty-three".