1522143013 has 6 divisors (see below), whose sum is σ = 1591201094. Its totient is φ = 1455962376.

The previous prime is 1522142983. The next prime is 1522143017. The reversal of 1522143013 is 3103412251.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 847857924 + 674285089 = 29118^2 + 25967^2 .

It is not a de Polignac number, because 1522143013 - 2²¹ = 1520045861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1522143017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1438170 + ... + 1439227.

Almost surely, 2^1522143013 is an apocalyptic number.

It is an amenable number.

1522143013 is a deficient number, since it is larger than the sum of its proper divisors (69058081).

1522143013 is an equidigital number, since it uses as much as digits as its factorization.

1522143013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2877443 (or 2877420 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1522143013 is about 39014.6512607764. The cubic root of 1522143013 is about 1150.3195112201.

Adding to 1522143013 its reverse (3103412251), we get a palindrome (4625555264).

The spelling of 1522143013 in words is "one billion, five hundred twenty-two million, one hundred forty-three thousand, thirteen".