1523142642 has 32 divisors (see below), whose sum is σ = 3686262912. Its totient is φ = 409584384.

The previous prime is 1523142637. The next prime is 1523142653. The reversal of 1523142642 is 2462413251.

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, 1065913 + ... + 1067340.

It is an arithmetic number, because the mean of its divisors is an integer number (115195716).

Almost surely, 2^1523142642 is an apocalyptic number.

1523142642 is an abundant number, since it is smaller than the sum of its proper divisors (2163120270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1523142642 is a wasteful number, since it uses less digits than its factorization.

1523142642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133282.

The product of its digits is 11520, while the sum is 30.

The square root of 1523142642 is about 39027.4601018309. The cubic root of 1523142642 is about 1150.5712705497.

Adding to 1523142642 its reverse (2462413251), we get a palindrome (3985555893).

The spelling of 1523142642 in words is "one billion, five hundred twenty-three million, one hundred forty-two thousand, six hundred forty-two".