31193141 has 8 divisors (see below), whose sum is σ = 35689920. Its totient is φ = 26706528.

The previous prime is 31193137. The next prime is 31193167. The reversal of 31193141 is 14139113.

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

It is a cyclic number.

It is not a de Polignac number, because 31193141 - 2² = 31193137 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31193131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5930 + ... + 9876.

It is an arithmetic number, because the mean of its divisors is an integer number (4461240).

Almost surely, 2^31193141 is an apocalyptic number.

It is an amenable number.

31193141 is a deficient number, since it is larger than the sum of its proper divisors (4496779).

31193141 is a wasteful number, since it uses less digits than its factorization.

31193141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5083.

The product of its digits is 324, while the sum is 23.

The square root of 31193141 is about 5585.0820047695. The cubic root of 31193141 is about 314.7891122257.

The spelling of 31193141 in words is "thirty-one million, one hundred ninety-three thousand, one hundred forty-one".