131247623 has 8 divisors (see below), whose sum is σ = 141581328. Its totient is φ = 120947904.

The previous prime is 131247619. The next prime is 131247631. The reversal of 131247623 is 326742131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 131247623 - 2² = 131247619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131247673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161 + ... + 16202.

It is an arithmetic number, because the mean of its divisors is an integer number (17697666).

Almost surely, 2^131247623 is an apocalyptic number.

131247623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131247623 is a deficient number, since it is larger than the sum of its proper divisors (10333705).

131247623 is a wasteful number, since it uses less digits than its factorization.

131247623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16993.

The product of its digits is 6048, while the sum is 29.

The square root of 131247623 is about 11456.3354961349. The cubic root of 131247623 is about 508.1951104852.

Adding to 131247623 its reverse (326742131), we get a palindrome (457989754).

The spelling of 131247623 in words is "one hundred thirty-one million, two hundred forty-seven thousand, six hundred twenty-three".