31134406 has 4 divisors (see below), whose sum is σ = 46701612. Its totient is φ = 15567202.

The previous prime is 31134403. The next prime is 31134409. The reversal of 31134406 is 60443113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60443113 = 2027 ⋅29819.

It is an interprime number because it is at equal distance from previous prime (31134403) and next prime (31134409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31134401) by changing a digit.

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 as a sum of consecutive naturals, namely, 7783600 + ... + 7783603.

It is an arithmetic number, because the mean of its divisors is an integer number (11675403).

Almost surely, 2^31134406 is an apocalyptic number.

31134406 is a deficient number, since it is larger than the sum of its proper divisors (15567206).

31134406 is a wasteful number, since it uses less digits than its factorization.

31134406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15567205.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 31134406 is about 5579.8213233042. The cubic root of 31134406 is about 314.5914111205.

Adding to 31134406 its reverse (60443113), we get a palindrome (91577519).

The spelling of 31134406 in words is "thirty-one million, one hundred thirty-four thousand, four hundred six".