131542045 has 16 divisors (see below), whose sum is σ = 159570432. Its totient is φ = 104094720.

The previous prime is 131542043. The next prime is 131542051. The reversal of 131542045 is 540245131.

It is a happy number.

It is not a de Polignac number, because 131542045 - 2¹ = 131542043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131542043) 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, 261264 + ... + 261766.

It is an arithmetic number, because the mean of its divisors is an integer number (9973152).

Almost surely, 2^131542045 is an apocalyptic number.

It is an amenable number.

131542045 is a deficient number, since it is larger than the sum of its proper divisors (28028387).

131542045 is a wasteful number, since it uses less digits than its factorization.

131542045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 131542045 is about 11469.1780437833. The cubic root of 131542045 is about 508.5748305775.

Adding to 131542045 its reverse (540245131), we get a palindrome (671787176).

The spelling of 131542045 in words is "one hundred thirty-one million, five hundred forty-two thousand, forty-five".