131403212 has 12 divisors (see below), whose sum is σ = 233106216. Its totient is φ = 64801440.

The previous prime is 131403143. The next prime is 131403253. The reversal of 131403212 is 212304131.

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, 224714 + ... + 225297.

It is an arithmetic number, because the mean of its divisors is an integer number (19425518).

Almost surely, 2^131403212 is an apocalyptic number.

It is an amenable number.

131403212 is a deficient number, since it is larger than the sum of its proper divisors (101703004).

131403212 is a wasteful number, since it uses less digits than its factorization.

131403212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450088 (or 450086 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 131403212 is about 11463.1240070061. The cubic root of 131403212 is about 508.3958464253.

Adding to 131403212 its reverse (212304131), we get a palindrome (343707343).

The spelling of 131403212 in words is "one hundred thirty-one million, four hundred three thousand, two hundred twelve".