131505033 has 16 divisors (see below), whose sum is σ = 193072896. Its totient is φ = 78953040.

The previous prime is 131505001. The next prime is 131505037. The reversal of 131505033 is 330505131.

It is a happy number.

It is not a de Polignac number, because 131505033 - 2⁵ = 131505001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131505037) 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, 15091 + ... + 22152.

It is an arithmetic number, because the mean of its divisors is an integer number (12067056).

Almost surely, 2^131505033 is an apocalyptic number.

It is an amenable number.

131505033 is a deficient number, since it is larger than the sum of its proper divisors (61567863).

131505033 is a wasteful number, since it uses less digits than its factorization.

131505033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37364.

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

The square root of 131505033 is about 11467.5643883084. The cubic root of 131505033 is about 508.5271268506.

The spelling of 131505033 in words is "one hundred thirty-one million, five hundred five thousand, thirty-three".