31134461 has 4 divisors (see below), whose sum is σ = 31644924. Its totient is φ = 30624000.

The previous prime is 31134443. The next prime is 31134469. The reversal of 31134461 is 16443113.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1768900 + 29365561 = 1330^2 + 5419^2 .

It is a cyclic number.

It is not a de Polignac number, because 31134461 - 2¹⁰ = 31133437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31134469) 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, 255140 + ... + 255261.

It is an arithmetic number, because the mean of its divisors is an integer number (7911231).

Almost surely, 2^31134461 is an apocalyptic number.

It is an amenable number.

31134461 is a deficient number, since it is larger than the sum of its proper divisors (510463).

31134461 is an equidigital number, since it uses as much as digits as its factorization.

31134461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510462.

The product of its digits is 864, while the sum is 23.

The square root of 31134461 is about 5579.8262517752. The cubic root of 31134461 is about 314.5915963660.

Adding to 31134461 its reverse (16443113), we get a palindrome (47577574).

The spelling of 31134461 in words is "thirty-one million, one hundred thirty-four thousand, four hundred sixty-one".