1321513054 has 16 divisors (see below), whose sum is σ = 2102364288. Its totient is φ = 620854272.

The previous prime is 1321513049. The next prime is 1321513073. The reversal of 1321513054 is 4503151231.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11379 + ... + 52654.

It is an arithmetic number, because the mean of its divisors is an integer number (131397768).

Almost surely, 2^1321513054 is an apocalyptic number.

1321513054 is a deficient number, since it is larger than the sum of its proper divisors (780851234).

1321513054 is a wasteful number, since it uses less digits than its factorization.

1321513054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64659.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1321513054 is about 36352.6210059192. The cubic root of 1321513054 is about 1097.3802821868.

Adding to 1321513054 its reverse (4503151231), we get a palindrome (5824664285).

The spelling of 1321513054 in words is "one billion, three hundred twenty-one million, five hundred thirteen thousand, fifty-four".