31427148 has 24 divisors (see below), whose sum is σ = 74260480. Its totient is φ = 10342800.

The previous prime is 31427147. The next prime is 31427173. The reversal of 31427148 is 84172413.

It is not an unprimeable number, because it can be changed into a prime (31427147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15628 + ... + 17523.

Almost surely, 2^31427148 is an apocalyptic number.

It is an amenable number.

31427148 is an abundant number, since it is smaller than the sum of its proper divisors (42833332).

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

31427148 is a wasteful number, since it uses less digits than its factorization.

31427148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33237 (or 33235 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 31427148 is about 5605.9921512610. The cubic root of 31427148 is about 315.5743213472.

The spelling of 31427148 in words is "thirty-one million, four hundred twenty-seven thousand, one hundred forty-eight".