1226615232515 has 4 divisors (see below), whose sum is σ = 1471938279024. Its totient is φ = 981292186008.

The previous prime is 1226615232463. The next prime is 1226615232611. The reversal of 1226615232515 is 5152325166221.

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

It is a cyclic number.

It is not a de Polignac number, because 1226615232515 - 2²⁸ = 1226346797059 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122661523247 + ... + 122661523256.

It is an arithmetic number, because the mean of its divisors is an integer number (367984569756).

Almost surely, 2^{1226615232515} is an apocalyptic number.

1226615232515 is a deficient number, since it is larger than the sum of its proper divisors (245323046509).

1226615232515 is an equidigital number, since it uses as much as digits as its factorization.

1226615232515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245323046508.

The product of its digits is 216000, while the sum is 41.

The spelling of 1226615232515 in words is "one trillion, two hundred twenty-six billion, six hundred fifteen million, two hundred thirty-two thousand, five hundred fifteen".