31196141 has 4 divisors (see below), whose sum is σ = 32271900. Its totient is φ = 30120384.

The previous prime is 31196129. The next prime is 31196159. The reversal of 31196141 is 14169113.

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 10530025 + 20666116 = 3245^2 + 4546^2 .

It is a cyclic number.

It is not a de Polignac number, because 31196141 - 2¹⁰ = 31195117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31196141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31196111) 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, 537836 + ... + 537893.

It is an arithmetic number, because the mean of its divisors is an integer number (8067975).

Almost surely, 2^31196141 is an apocalyptic number.

It is an amenable number.

31196141 is a deficient number, since it is larger than the sum of its proper divisors (1075759).

31196141 is a wasteful number, since it uses less digits than its factorization.

31196141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075758.

The product of its digits is 648, while the sum is 26.

The square root of 31196141 is about 5585.3505709132. The cubic root of 31196141 is about 314.7992035153.

The spelling of 31196141 in words is "thirty-one million, one hundred ninety-six thousand, one hundred forty-one".