31194069 has 4 divisors (see below), whose sum is σ = 41592096. Its totient is φ = 20796044.

The previous prime is 31194043. The next prime is 31194073. The reversal of 31194069 is 96049113.

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.

It is a cyclic number.

It is not a de Polignac number, because 31194069 - 2¹³ = 31185877 is a prime.

It is a super-2 number, since 2×31194069² = 1946139881553522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31194089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5199009 + ... + 5199014.

It is an arithmetic number, because the mean of its divisors is an integer number (10398024).

Almost surely, 2^31194069 is an apocalyptic number.

It is an amenable number.

31194069 is a deficient number, since it is larger than the sum of its proper divisors (10398027).

31194069 is a wasteful number, since it uses less digits than its factorization.

31194069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10398026.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 31194069 is about 5585.1650826095. The cubic root of 31194069 is about 314.7922338671.

The spelling of 31194069 in words is "thirty-one million, one hundred ninety-four thousand, sixty-nine".