31080226 has 8 divisors (see below), whose sum is σ = 46647324. Its totient is φ = 15531120.

The previous prime is 31080223. The next prime is 31080239. The reversal of 31080226 is 62208013.

It can be written as a sum of positive squares in 2 ways, for example, as 29975625 + 1104601 = 5475^2 + 1051^2 .

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

It is a super-2 number, since 2×31080226² = 1931960896422152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31080197 and 31080206.

It is not an unprimeable number, because it can be changed into a prime (31080223) 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, 1336 + ... + 7996.

Almost surely, 2^31080226 is an apocalyptic number.

31080226 is a deficient number, since it is larger than the sum of its proper divisors (15567098).

31080226 is a wasteful number, since it uses less digits than its factorization.

31080226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8996.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 31080226 is about 5574.9642151318. The cubic root of 31080226 is about 314.4088214887.

Adding to 31080226 its reverse (62208013), we get a palindrome (93288239).

The spelling of 31080226 in words is "thirty-one million, eighty thousand, two hundred twenty-six".