31421134 has 8 divisors (see below), whose sum is σ = 49904208. Its totient is φ = 14786400.

The previous prime is 31421111. The next prime is 31421141. The reversal of 31421134 is 43112413.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462042 + ... + 462109.

It is an arithmetic number, because the mean of its divisors is an integer number (6238026).

Almost surely, 2^31421134 is an apocalyptic number.

31421134 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

31421134 is a deficient number, since it is larger than the sum of its proper divisors (18483074).

31421134 is a wasteful number, since it uses less digits than its factorization.

31421134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924170.

The product of its digits is 288, while the sum is 19.

The square root of 31421134 is about 5605.4557352636. The cubic root of 31421134 is about 315.5541902911.

Adding to 31421134 its reverse (43112413), we get a palindrome (74533547).

The spelling of 31421134 in words is "thirty-one million, four hundred twenty-one thousand, one hundred thirty-four".