131541442 has 8 divisors (see below), whose sum is σ = 201035196. Its totient is φ = 64529712.

The previous prime is 131541433. The next prime is 131541451. The reversal of 131541442 is 244145131.

It is an interprime number because it is at equal distance from previous prime (131541433) and next prime (131541451).

It can be written as a sum of positive squares in 2 ways, for example, as 131537961 + 3481 = 11469^2 + 59^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 620373 + ... + 620584.

Almost surely, 2^131541442 is an apocalyptic number.

131541442 is a deficient number, since it is larger than the sum of its proper divisors (69493754).

131541442 is a wasteful number, since it uses less digits than its factorization.

131541442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241012.

The product of its digits is 1920, while the sum is 25.

The square root of 131541442 is about 11469.1517559059. The cubic root of 131541442 is about 508.5740534594.

Adding to 131541442 its reverse (244145131), we get a palindrome (375686573).

The spelling of 131541442 in words is "one hundred thirty-one million, five hundred forty-one thousand, four hundred forty-two".