1520442115 has 16 divisors (see below), whose sum is σ = 1832871456. Its totient is φ = 1210809600.

The previous prime is 1520442097. The next prime is 1520442127. The reversal of 1520442115 is 5112440251.

It is not a de Polignac number, because 1520442115 - 2⁵ = 1520442083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1520442115.

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, 1721464 + ... + 1722346.

It is an arithmetic number, because the mean of its divisors is an integer number (114554466).

Almost surely, 2^1520442115 is an apocalyptic number.

1520442115 is a deficient number, since it is larger than the sum of its proper divisors (312429341).

1520442115 is an equidigital number, since it uses as much as digits as its factorization.

1520442115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1520442115 is about 38992.8469722333. The cubic root of 1520442115 is about 1149.8908818962.

Adding to 1520442115 its reverse (5112440251), we get a palindrome (6632882366).

The spelling of 1520442115 in words is "one billion, five hundred twenty million, four hundred forty-two thousand, one hundred fifteen".