1226140725515 has 8 divisors (see below), whose sum is σ = 1471810875840. Its totient is φ = 980617910272.

The previous prime is 1226140725497. The next prime is 1226140725547. The reversal of 1226140725515 is 5155270416221.

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

It is a cyclic number.

It is not a de Polignac number, because 1226140725515 - 2³⁶ = 1157421248779 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36815459 + ... + 36848748.

It is an arithmetic number, because the mean of its divisors is an integer number (183976359480).

Almost surely, 2^{1226140725515} is an apocalyptic number.

1226140725515 is a deficient number, since it is larger than the sum of its proper divisors (245670150325).

1226140725515 is an equidigital number, since it uses as much as digits as its factorization.

1226140725515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73667541.

The product of its (nonzero) digits is 168000, while the sum is 41.

The spelling of 1226140725515 in words is "one trillion, two hundred twenty-six billion, one hundred forty million, seven hundred twenty-five thousand, five hundred fifteen".