1515434542 has 16 divisors (see below), whose sum is σ = 2323947600. Its totient is φ = 740950848.

The previous prime is 1515434537. The next prime is 1515434549. The reversal of 1515434542 is 2454345151.

It is a junction number, because it is equal to n+sod(n) for n = 1515434498 and 1515434507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1515434549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22917 + ... + 59632.

It is an arithmetic number, because the mean of its divisors is an integer number (145246725).

Almost surely, 2^1515434542 is an apocalyptic number.

1515434542 is a deficient number, since it is larger than the sum of its proper divisors (808513058).

1515434542 is a wasteful number, since it uses less digits than its factorization.

1515434542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82755.

The product of its digits is 48000, while the sum is 34.

The square root of 1515434542 is about 38928.5825840089. The cubic root of 1515434542 is about 1148.6271057074.

Adding to 1515434542 its reverse (2454345151), we get a palindrome (3969779693).

The spelling of 1515434542 in words is "one billion, five hundred fifteen million, four hundred thirty-four thousand, five hundred forty-two".