131212654 has 8 divisors (see below), whose sum is σ = 205376400. Its totient is φ = 62753856.

The previous prime is 131212639. The next prime is 131212657. The reversal of 131212654 is 456212131.

It is a happy number.

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 (131212657) 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, 1426179 + ... + 1426270.

It is an arithmetic number, because the mean of its divisors is an integer number (25672050).

Almost surely, 2^131212654 is an apocalyptic number.

131212654 is a deficient number, since it is larger than the sum of its proper divisors (74163746).

131212654 is a wasteful number, since it uses less digits than its factorization.

131212654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2852474.

The product of its digits is 1440, while the sum is 25.

The square root of 131212654 is about 11454.8092083631. The cubic root of 131212654 is about 508.1499727704.

Adding to 131212654 its reverse (456212131), we get a palindrome (587424785).

The spelling of 131212654 in words is "one hundred thirty-one million, two hundred twelve thousand, six hundred fifty-four".