131031470 has 8 divisors (see below), whose sum is σ = 235856664. Its totient is φ = 52412584.

The previous prime is 131031469. The next prime is 131031473. The reversal of 131031470 is 74130131.

It is a happy number.

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

It is a super-2 number, since 2×131031470² = 34338492260721800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131031473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6551564 + ... + 6551583.

It is an arithmetic number, because the mean of its divisors is an integer number (29482083).

Almost surely, 2^131031470 is an apocalyptic number.

131031470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131031470 is a deficient number, since it is larger than the sum of its proper divisors (104825194).

131031470 is a wasteful number, since it uses less digits than its factorization.

131031470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13103154.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 131031470 is about 11446.8978330376. The cubic root of 131031470 is about 507.9159733508.

The spelling of 131031470 in words is "one hundred thirty-one million, thirty-one thousand, four hundred seventy".