131356730 has 8 divisors (see below), whose sum is σ = 236442132. Its totient is φ = 52542688.

The previous prime is 131356727. The next prime is 131356751. The reversal of 131356730 is 37653131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 131354521 + 2209 = 11461^2 + 47^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 131356693 and 131356702.

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, 6567827 + ... + 6567846.

Almost surely, 2^131356730 is an apocalyptic number.

131356730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131356730 is a deficient number, since it is larger than the sum of its proper divisors (105085402).

131356730 is a wasteful number, since it uses less digits than its factorization.

131356730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13135680.

The product of its (nonzero) digits is 5670, while the sum is 29.

The square root of 131356730 is about 11461.0963698941. The cubic root of 131356730 is about 508.3358934447.

The spelling of 131356730 in words is "one hundred thirty-one million, three hundred fifty-six thousand, seven hundred thirty".