31494607 has 4 divisors (see below), whose sum is σ = 31575960. Its totient is φ = 31413256.

The previous prime is 31494583. The next prime is 31494611. The reversal of 31494607 is 70649413.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31494607 - 2⁷ = 31494479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31494637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40093 + ... + 40870.

It is an arithmetic number, because the mean of its divisors is an integer number (7893990).

Almost surely, 2^31494607 is an apocalyptic number.

31494607 is a deficient number, since it is larger than the sum of its proper divisors (81353).

31494607 is an equidigital number, since it uses as much as digits as its factorization.

31494607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81352.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 31494607 is about 5612.0056129694. The cubic root of 31494607 is about 315.7999555064.

The spelling of 31494607 in words is "thirty-one million, four hundred ninety-four thousand, six hundred seven".