131003535 has 32 divisors (see below), whose sum is σ = 226372608. Its totient is φ = 64310400.

The previous prime is 131003501. The next prime is 131003557. The reversal of 131003535 is 535300131.

It is a happy number.

It is not a de Polignac number, because 131003535 - 2⁶ = 131003471 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, 89560 + ... + 91010.

It is an arithmetic number, because the mean of its divisors is an integer number (7074144).

Almost surely, 2^131003535 is an apocalyptic number.

131003535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131003535 is a deficient number, since it is larger than the sum of its proper divisors (95369073).

131003535 is a wasteful number, since it uses less digits than its factorization.

131003535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935.

The product of its (nonzero) digits is 675, while the sum is 21.

The square root of 131003535 is about 11445.6775684098. The cubic root of 131003535 is about 507.8798760653.

Adding to 131003535 its reverse (535300131), we get a palindrome (666303666).

The spelling of 131003535 in words is "one hundred thirty-one million, three thousand, five hundred thirty-five".