31141998 has 24 divisors (see below), whose sum is σ = 69802200. Its totient is φ = 10022544.

The previous prime is 31141997. The next prime is 31142003. The reversal of 31141998 is 89914113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31141991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29308 + ... + 30351.

It is an arithmetic number, because the mean of its divisors is an integer number (2908425).

Almost surely, 2^31141998 is an apocalyptic number.

31141998 is an abundant number, since it is smaller than the sum of its proper divisors (38660202).

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

31141998 is a wasteful number, since it uses less digits than its factorization.

31141998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59696 (or 59693 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 31141998 is about 5580.5015903591. The cubic root of 31141998 is about 314.6169796602.

The spelling of 31141998 in words is "thirty-one million, one hundred forty-one thousand, nine hundred ninety-eight".