1520442273 has 16 divisors (see below), whose sum is σ = 2320328576. Its totient is φ = 867525120.

The previous prime is 1520442271. The next prime is 1520442281. The reversal of 1520442273 is 3722440251.

It is not a de Polignac number, because 1520442273 - 2¹ = 1520442271 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1520442273.

It is not an unprimeable number, because it can be changed into a prime (1520442271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39658 + ... + 67923.

It is an arithmetic number, because the mean of its divisors is an integer number (145020536).

Almost surely, 2^1520442273 is an apocalyptic number.

It is an amenable number.

1520442273 is a deficient number, since it is larger than the sum of its proper divisors (799886303).

1520442273 is a wasteful number, since it uses less digits than its factorization.

1520442273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108264.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 1520442273 is about 38992.8489982458. The cubic root of 1520442273 is about 1149.8909217273.

The spelling of 1520442273 in words is "one billion, five hundred twenty million, four hundred forty-two thousand, two hundred seventy-three".