131303535 has 32 divisors (see below), whose sum is σ = 231482880. Its totient is φ = 63024000.

The previous prime is 131303519. The next prime is 131303551. The reversal of 131303535 is 535303131.

It is an interprime number because it is at equal distance from previous prime (131303519) and next prime (131303551).

It is not a de Polignac number, because 131303535 - 2⁴ = 131303519 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12726 + ... + 20604.

It is an arithmetic number, because the mean of its divisors is an integer number (7233840).

Almost surely, 2^131303535 is an apocalyptic number.

131303535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131303535 is a deficient number, since it is larger than the sum of its proper divisors (100179345).

131303535 is a wasteful number, since it uses less digits than its factorization.

131303535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7999.

The product of its (nonzero) digits is 2025, while the sum is 24.

The square root of 131303535 is about 11458.7754581369. The cubic root of 131303535 is about 508.2672646075.

Adding to 131303535 its reverse (535303131), we get a palindrome (666606666).

The spelling of 131303535 in words is "one hundred thirty-one million, three hundred three thousand, five hundred thirty-five".