1523132113 has 4 divisors (see below), whose sum is σ = 1575653940. Its totient is φ = 1470610288.

The previous prime is 1523132089. The next prime is 1523132137. The reversal of 1523132113 is 3112313251.

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

It is an interprime number because it is at equal distance from previous prime (1523132089) and next prime (1523132137).

It can be written as a sum of positive squares in 2 ways, for example, as 296941824 + 1226190289 = 17232^2 + 35017^2 .

It is a cyclic number.

It is not a de Polignac number, because 1523132113 - 2⁵ = 1523132081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1523132213) 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, 26260870 + ... + 26260927.

It is an arithmetic number, because the mean of its divisors is an integer number (393913485).

Almost surely, 2^1523132113 is an apocalyptic number.

It is an amenable number.

1523132113 is a deficient number, since it is larger than the sum of its proper divisors (52521827).

1523132113 is an equidigital number, since it uses as much as digits as its factorization.

1523132113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52521826.

The product of its digits is 540, while the sum is 22.

The square root of 1523132113 is about 39027.3252093966. The cubic root of 1523132113 is about 1150.5686193660.

Adding to 1523132113 its reverse (3112313251), we get a palindrome (4635445364).

The spelling of 1523132113 in words is "one billion, five hundred twenty-three million, one hundred thirty-two thousand, one hundred thirteen".