31493141 has 8 divisors (see below), whose sum is σ = 33402624. Its totient is φ = 29628720.

The previous prime is 31493131. The next prime is 31493153. The reversal of 31493141 is 14139413.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31493141 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31493141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31493131) 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, 9821 + ... + 12626.

It is an arithmetic number, because the mean of its divisors is an integer number (4175328).

Almost surely, 2^31493141 is an apocalyptic number.

It is an amenable number.

31493141 is a deficient number, since it is larger than the sum of its proper divisors (1909483).

31493141 is a wasteful number, since it uses less digits than its factorization.

31493141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22531.

The product of its digits is 1296, while the sum is 26.

The square root of 31493141 is about 5611.8749986079. The cubic root of 31493141 is about 315.7950555149.

The spelling of 31493141 in words is "thirty-one million, four hundred ninety-three thousand, one hundred forty-one".