131522045 has 4 divisors (see below), whose sum is σ = 157826460. Its totient is φ = 105217632.

The previous prime is 131522023. The next prime is 131522051. The reversal of 131522045 is 540225131.

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 13734436 + 117787609 = 3706^2 + 10853^2 .

It is a cyclic number.

It is not a de Polignac number, because 131522045 - 2²² = 127327741 is a prime.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 131522045.

It is a congruent number.

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, 13152200 + ... + 13152209.

It is an arithmetic number, because the mean of its divisors is an integer number (39456615).

Almost surely, 2^131522045 is an apocalyptic number.

It is an amenable number.

131522045 is a deficient number, since it is larger than the sum of its proper divisors (26304415).

131522045 is an equidigital number, since it uses as much as digits as its factorization.

131522045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26304414.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 131522045 is about 11468.3061085759. The cubic root of 131522045 is about 508.5490542508.

Adding to 131522045 its reverse (540225131), we get a palindrome (671747176).

The spelling of 131522045 in words is "one hundred thirty-one million, five hundred twenty-two thousand, forty-five".