31334197 has 2 divisors, whose sum is σ = 31334198. Its totient is φ = 31334196.

The previous prime is 31334189. The next prime is 31334231. The reversal of 31334197 is 79143313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30758116 + 576081 = 5546^2 + 759^2 .

It is a cyclic number.

It is not a de Polignac number, because 31334197 - 2³ = 31334189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31334137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15667098 + 15667099.

It is an arithmetic number, because the mean of its divisors is an integer number (15667099).

Almost surely, 2^31334197 is an apocalyptic number.

It is an amenable number.

31334197 is a deficient number, since it is larger than the sum of its proper divisors (1).

31334197 is an equidigital number, since it uses as much as digits as its factorization.

31334197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804, while the sum is 31.

The square root of 31334197 is about 5597.6956866196. The cubic root of 31334197 is about 315.2628929884.

The spelling of 31334197 in words is "thirty-one million, three hundred thirty-four thousand, one hundred ninety-seven".