1513426745 has 4 divisors (see below), whose sum is σ = 1816112100. Its totient is φ = 1210741392.

The previous prime is 1513426721. The next prime is 1513426763. The reversal of 1513426745 is 5476243151.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1087086841 + 426339904 = 32971^2 + 20648^2 .

It is a cyclic number.

It is not a de Polignac number, because 1513426745 - 2²⁶ = 1446317881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1513426699 and 1513426708.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151342670 + ... + 151342679.

It is an arithmetic number, because the mean of its divisors is an integer number (454028025).

Almost surely, 2^1513426745 is an apocalyptic number.

It is an amenable number.

1513426745 is a deficient number, since it is larger than the sum of its proper divisors (302685355).

1513426745 is an equidigital number, since it uses as much as digits as its factorization.

1513426745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302685354.

The product of its digits is 100800, while the sum is 38.

The square root of 1513426745 is about 38902.7858256963. The cubic root of 1513426745 is about 1148.1196100592.

Adding to 1513426745 its reverse (5476243151), we get a palindrome (6989669896).

The spelling of 1513426745 in words is "one billion, five hundred thirteen million, four hundred twenty-six thousand, seven hundred forty-five".