31470107 has 4 divisors (see below), whose sum is σ = 31497936. Its totient is φ = 31442280.

The previous prime is 31470097. The next prime is 31470143. The reversal of 31470107 is 70107413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70107413 = 29 ⋅2417497.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31470107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31470167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12143 + ... + 14504.

It is an arithmetic number, because the mean of its divisors is an integer number (7874484).

Almost surely, 2^31470107 is an apocalyptic number.

31470107 is a deficient number, since it is larger than the sum of its proper divisors (27829).

31470107 is a wasteful number, since it uses less digits than its factorization.

31470107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27828.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 31470107 is about 5609.8223679543. The cubic root of 31470107 is about 315.7180461810.

The spelling of 31470107 in words is "thirty-one million, four hundred seventy thousand, one hundred seven".