1513453123 has 16 divisors (see below), whose sum is σ = 1863848896. Its totient is φ = 1196726400.

The previous prime is 1513453121. The next prime is 1513453129. The reversal of 1513453123 is 3213543151.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1513453123 - 2¹ = 1513453121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1513453091 and 1513453100.

It is not an unprimeable number, because it can be changed into a prime (1513453121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182773 + ... + 190873.

It is an arithmetic number, because the mean of its divisors is an integer number (116490556).

Almost surely, 2^1513453123 is an apocalyptic number.

1513453123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1513453123 is a deficient number, since it is larger than the sum of its proper divisors (350395773).

1513453123 is a wasteful number, since it uses less digits than its factorization.

1513453123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10174.

The product of its digits is 5400, while the sum is 28.

The square root of 1513453123 is about 38903.1248487830. The cubic root of 1513453123 is about 1148.1262803354.

Adding to 1513453123 its reverse (3213543151), we get a palindrome (4726996274).

The spelling of 1513453123 in words is "one billion, five hundred thirteen million, four hundred fifty-three thousand, one hundred twenty-three".