1514745432721 has 4 divisors (see below), whose sum is σ = 1603848105252. Its totient is φ = 1425642760192.

The previous prime is 1514745432719. The next prime is 1514745432737. The reversal of 1514745432721 is 1272345474151.

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 1413055238400 + 101690194321 = 1188720^2 + 318889^2 .

It is a cyclic number.

It is not a de Polignac number, because 1514745432721 - 2¹ = 1514745432719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1514745432791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44551336240 + ... + 44551336273.

It is an arithmetic number, because the mean of its divisors is an integer number (400962026313).

Almost surely, 2^{1514745432721} is an apocalyptic number.

It is an amenable number.

1514745432721 is a deficient number, since it is larger than the sum of its proper divisors (89102672531).

1514745432721 is an equidigital number, since it uses as much as digits as its factorization.

1514745432721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89102672530.

The product of its digits is 940800, while the sum is 46.

The spelling of 1514745432721 in words is "one trillion, five hundred fourteen billion, seven hundred forty-five million, four hundred thirty-two thousand, seven hundred twenty-one".