31148214 has 8 divisors (see below), whose sum is σ = 62296440. Its totient is φ = 10382736.

The previous prime is 31148209. The next prime is 31148219. The reversal of 31148214 is 41284113.

It is an interprime number because it is at equal distance from previous prime (31148209) and next prime (31148219).

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

31148214 is an admirable number.

It is a super-2 number, since 2×31148214² = 1940422470779592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31148219) 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, 2595679 + ... + 2595690.

It is an arithmetic number, because the mean of its divisors is an integer number (7787055).

Almost surely, 2^31148214 is an apocalyptic number.

31148214 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31148214 is a wasteful number, since it uses less digits than its factorization.

31148214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5191374.

The product of its digits is 768, while the sum is 24.

The square root of 31148214 is about 5581.0585017539. The cubic root of 31148214 is about 314.6379109767.

The spelling of 31148214 in words is "thirty-one million, one hundred forty-eight thousand, two hundred fourteen".