131733145 has 4 divisors (see below), whose sum is σ = 158079780. Its totient is φ = 105386512.

The previous prime is 131733131. The next prime is 131733169. The reversal of 131733145 is 541337131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 68244121 + 63489024 = 8261^2 + 7968^2 .

It is a cyclic number.

It is not a de Polignac number, because 131733145 - 2⁵ = 131733113 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13173310 + ... + 13173319.

It is an arithmetic number, because the mean of its divisors is an integer number (39519945).

Almost surely, 2^131733145 is an apocalyptic number.

It is an amenable number.

131733145 is a deficient number, since it is larger than the sum of its proper divisors (26346635).

131733145 is an equidigital number, since it uses as much as digits as its factorization.

131733145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26346634.

The product of its digits is 3780, while the sum is 28.

The square root of 131733145 is about 11477.5060444332. The cubic root of 131733145 is about 508.8209917292.

The spelling of 131733145 in words is "one hundred thirty-one million, seven hundred thirty-three thousand, one hundred forty-five".