31341929 has 4 divisors (see below), whose sum is σ = 31386240. Its totient is φ = 31297620.

The previous prime is 31341911. The next prime is 31341943. The reversal of 31341929 is 92914313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92914313 = 19 ⋅4890227.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31341929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31341895 and 31341904.

It is not an unprimeable number, because it can be changed into a prime (31341979) 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, 21077 + ... + 22514.

It is an arithmetic number, because the mean of its divisors is an integer number (7846560).

Almost surely, 2^31341929 is an apocalyptic number.

It is an amenable number.

31341929 is a deficient number, since it is larger than the sum of its proper divisors (44311).

31341929 is an equidigital number, since it uses as much as digits as its factorization.

31341929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44310.

The product of its digits is 5832, while the sum is 32.

The square root of 31341929 is about 5598.3862853504. The cubic root of 31341929 is about 315.2888221908.

The spelling of 31341929 in words is "thirty-one million, three hundred forty-one thousand, nine hundred twenty-nine".