1440145152515 has 16 divisors (see below), whose sum is σ = 1730372232960. Its totient is φ = 1150651699200.

The previous prime is 1440145152499. The next prime is 1440145152583. The reversal of 1440145152515 is 5152515410441.

It is not a de Polignac number, because 1440145152515 - 2⁴ = 1440145152499 is a prime.

It is a super-2 number, since 2×1440145152515² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12486431 + ... + 12601239.

It is an arithmetic number, because the mean of its divisors is an integer number (108148264560).

Almost surely, 2^{1440145152515} is an apocalyptic number.

1440145152515 is a deficient number, since it is larger than the sum of its proper divisors (290227080445).

1440145152515 is a wasteful number, since it uses less digits than its factorization.

1440145152515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117982.

The product of its (nonzero) digits is 80000, while the sum is 38.

The spelling of 1440145152515 in words is "one trillion, four hundred forty billion, one hundred forty-five million, one hundred fifty-two thousand, five hundred fifteen".