31141026 has 72 divisors (see below), whose sum is σ = 79545024. Its totient is φ = 8623440.

The previous prime is 31141007. The next prime is 31141067. The reversal of 31141026 is 62014113.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 438571 + ... + 438641.

It is an arithmetic number, because the mean of its divisors is an integer number (1104792).

Almost surely, 2^31141026 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31141026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39772512).

31141026 is an abundant number, since it is smaller than the sum of its proper divisors (48403998).

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

31141026 is a wasteful number, since it uses less digits than its factorization.

31141026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 31141026 is about 5580.4145007338. The cubic root of 31141026 is about 314.6137063647.

Adding to 31141026 its reverse (62014113), we get a palindrome (93155139).

The spelling of 31141026 in words is "thirty-one million, one hundred forty-one thousand, twenty-six".