31302134 has 8 divisors (see below), whose sum is σ = 49715208. Its totient is φ = 14730400.

The previous prime is 31302121. The next prime is 31302137. The reversal of 31302134 is 43120313.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31302137) 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, 460292 + ... + 460359.

It is an arithmetic number, because the mean of its divisors is an integer number (6214401).

Almost surely, 2^31302134 is an apocalyptic number.

31302134 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

31302134 is a deficient number, since it is larger than the sum of its proper divisors (18413074).

31302134 is a wasteful number, since it uses less digits than its factorization.

31302134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920670.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 31302134 is about 5594.8310072781. The cubic root of 31302134 is about 315.1553244226.

Adding to 31302134 its reverse (43120313), we get a palindrome (74422447).

The spelling of 31302134 in words is "thirty-one million, three hundred two thousand, one hundred thirty-four".