31134198 has 16 divisors (see below), whose sum is σ = 65545920. Its totient is φ = 9831816.

The previous prime is 31134143. The next prime is 31134221. The reversal of 31134198 is 89143113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136440 + ... + 136667.

It is an arithmetic number, because the mean of its divisors is an integer number (4096620).

Almost surely, 2^31134198 is an apocalyptic number.

31134198 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

31134198 is an abundant number, since it is smaller than the sum of its proper divisors (34411722).

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

31134198 is a wasteful number, since it uses less digits than its factorization.

31134198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273131.

The product of its digits is 2592, while the sum is 30.

The square root of 31134198 is about 5579.8026846834. The cubic root of 31134198 is about 314.5907105541.

The spelling of 31134198 in words is "thirty-one million, one hundred thirty-four thousand, one hundred ninety-eight".