131261542 has 8 divisors (see below), whose sum is σ = 201471336. Its totient is φ = 64104432.

The previous prime is 131261531. The next prime is 131261551. The reversal of 131261542 is 245162131.

It is a happy number.

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

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, 763063 + ... + 763234.

It is an arithmetic number, because the mean of its divisors is an integer number (25183917).

Almost surely, 2^131261542 is an apocalyptic number.

131261542 is a deficient number, since it is larger than the sum of its proper divisors (70209794).

131261542 is a wasteful number, since it uses less digits than its factorization.

131261542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526342.

The product of its digits is 1440, while the sum is 25.

The square root of 131261542 is about 11456.9429604934. The cubic root of 131261542 is about 508.2130747920.

The spelling of 131261542 in words is "one hundred thirty-one million, two hundred sixty-one thousand, five hundred forty-two".