1513113451 has 4 divisors (see below), whose sum is σ = 1513419712. Its totient is φ = 1512807192.

The previous prime is 1513113403. The next prime is 1513113467. The reversal of 1513113451 is 1543113151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1543113151 = 97 ⋅15908383.

It is a cyclic number.

It is not a de Polignac number, because 1513113451 - 2¹³ = 1513105259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1513113491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145596 + ... + 155641.

It is an arithmetic number, because the mean of its divisors is an integer number (378354928).

Almost surely, 2^1513113451 is an apocalyptic number.

1513113451 is a deficient number, since it is larger than the sum of its proper divisors (306261).

1513113451 is an equidigital number, since it uses as much as digits as its factorization.

1513113451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306260.

The product of its digits is 900, while the sum is 25.

The square root of 1513113451 is about 38898.7589904871. The cubic root of 1513113451 is about 1148.0403806307.

It can be divided in two parts, 15131 and 13451, that added together give a palindrome (28582).

The spelling of 1513113451 in words is "one billion, five hundred thirteen million, one hundred thirteen thousand, four hundred fifty-one".