1531097046 has 16 divisors (see below), whose sum is σ = 3402438000. Its totient is φ = 510365664.

The previous prime is 1531097041. The next prime is 1531097053. The reversal of 1531097046 is 6407901351.

It is a super-2 number, since 2×1531097046² = 4688516328539852232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1531097046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1531097041) 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, 14176771 + ... + 14176878.

It is an arithmetic number, because the mean of its divisors is an integer number (212652375).

Almost surely, 2^1531097046 is an apocalyptic number.

1531097046 is an abundant number, since it is smaller than the sum of its proper divisors (1871340954).

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

1531097046 is a wasteful number, since it uses less digits than its factorization.

1531097046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28353660 (or 28353654 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 1531097046 is about 39129.2351829166. The cubic root of 1531097046 is about 1152.5706943396.

Adding to 1531097046 its reverse (6407901351), we get a palindrome (7938998397).

The spelling of 1531097046 in words is "one billion, five hundred thirty-one million, ninety-seven thousand, forty-six".