1215010115153 has 4 divisors (see below), whose sum is σ = 1215059090868. Its totient is φ = 1214961139440.

The previous prime is 1215010115141. The next prime is 1215010115171. The reversal of 1215010115153 is 3515110105121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 498452944144 + 716557171009 = 706012^2 + 846497^2 .

It is a cyclic number.

It is not a de Polignac number, because 1215010115153 - 2¹² = 1215010111057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1215010115113) 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, 24450626 + ... + 24500267.

It is an arithmetic number, because the mean of its divisors is an integer number (303764772717).

Almost surely, 2^{1215010115153} is an apocalyptic number.

It is an amenable number.

1215010115153 is a deficient number, since it is larger than the sum of its proper divisors (48975715).

1215010115153 is an equidigital number, since it uses as much as digits as its factorization.

1215010115153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48975714.

The product of its (nonzero) digits is 750, while the sum is 26.

The spelling of 1215010115153 in words is "one trillion, two hundred fifteen billion, ten million, one hundred fifteen thousand, one hundred fifty-three".