1144721531215 has 8 divisors (see below), whose sum is σ = 1373833223280. Its totient is φ = 915665634432.

The previous prime is 1144721531171. The next prime is 1144721531249. The reversal of 1144721531215 is 5121351274411.

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 1144721531215 - 2¹⁵ = 1144721498447 is a prime.

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, 13903669 + ... + 13985758.

It is an arithmetic number, because the mean of its divisors is an integer number (171729152910).

Almost surely, 2^{1144721531215} is an apocalyptic number.

1144721531215 is a deficient number, since it is larger than the sum of its proper divisors (229111692065).

1144721531215 is an equidigital number, since it uses as much as digits as its factorization.

1144721531215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27897641.

The product of its digits is 33600, while the sum is 37.

The spelling of 1144721531215 in words is "one trillion, one hundred forty-four billion, seven hundred twenty-one million, five hundred thirty-one thousand, two hundred fifteen".