31230196 has 6 divisors (see below), whose sum is σ = 54652850. Its totient is φ = 15615096.

The previous prime is 31230191. The next prime is 31230209. The reversal of 31230196 is 69103213.

It can be written as a sum of positive squares in only one way, i.e., 29702500 + 1527696 = 5450^2 + 1236^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31230196.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31230191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3903771 + ... + 3903778.

Almost surely, 2^31230196 is an apocalyptic number.

It is an amenable number.

31230196 is a deficient number, since it is larger than the sum of its proper divisors (23422654).

31230196 is a wasteful number, since it uses less digits than its factorization.

31230196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7807553 (or 7807551 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 31230196 is about 5588.3983394171. The cubic root of 31230196 is about 314.9137111427.

It can be divided in two parts, 312301 and 96, that multiplied together give a triangular number (29980896 = T₇₇₄₃).

The spelling of 31230196 in words is "thirty-one million, two hundred thirty thousand, one hundred ninety-six".