130731406 has 8 divisors (see below), whose sum is σ = 211181544. Its totient is φ = 60337560.

The previous prime is 130731401. The next prime is 130731427. The reversal of 130731406 is 604137031.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130731401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2514040 + ... + 2514091.

It is an arithmetic number, because the mean of its divisors is an integer number (26397693).

Almost surely, 2^130731406 is an apocalyptic number.

130731406 is a deficient number, since it is larger than the sum of its proper divisors (80450138).

130731406 is a wasteful number, since it uses less digits than its factorization.

130731406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5028146.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 130731406 is about 11433.7835382694. The cubic root of 130731406 is about 507.5279653270.

Adding to 130731406 its reverse (604137031), we get a palindrome (734868437).

The spelling of 130731406 in words is "one hundred thirty million, seven hundred thirty-one thousand, four hundred six".