31472345 has 8 divisors (see below), whose sum is σ = 38645376. Its totient is φ = 24592176.

The previous prime is 31472339. The next prime is 31472351. The reversal of 31472345 is 54327413.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31472339) and next prime (31472351).

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

It is a cyclic number.

It is not a de Polignac number, because 31472345 - 2¹⁴ = 31455961 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 72977 + ... + 73406.

It is an arithmetic number, because the mean of its divisors is an integer number (4830672).

Almost surely, 2^31472345 is an apocalyptic number.

It is an amenable number.

31472345 is a deficient number, since it is larger than the sum of its proper divisors (7173031).

31472345 is a wasteful number, since it uses less digits than its factorization.

31472345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146431.

The product of its digits is 10080, while the sum is 29.

The square root of 31472345 is about 5610.0218359646. The cubic root of 31472345 is about 315.7255301111.

Adding to 31472345 its reverse (54327413), we get a palindrome (85799758).

The spelling of 31472345 in words is "thirty-one million, four hundred seventy-two thousand, three hundred forty-five".