131004342 has 36 divisors (see below), whose sum is σ = 330186636. Its totient is φ = 37429560.

The previous prime is 131004337. The next prime is 131004421. The reversal of 131004342 is 243400131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 73384 + ... + 75147.

It is an arithmetic number, because the mean of its divisors is an integer number (9171851).

Almost surely, 2^131004342 is an apocalyptic number.

131004342 is an abundant number, since it is smaller than the sum of its proper divisors (199182294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131004342 is a wasteful number, since it uses less digits than its factorization.

131004342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148553 (or 148543 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 131004342 is about 11445.7128218386. The cubic root of 131004342 is about 507.8809189334.

Adding to 131004342 its reverse (243400131), we get a palindrome (374404473).

The spelling of 131004342 in words is "one hundred thirty-one million, four thousand, three hundred forty-two".