31422146 has 8 divisors (see below), whose sum is σ = 53866560. Its totient is φ = 13466628.

The previous prime is 31422101. The next prime is 31422151. The reversal of 31422146 is 64122413.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1122206 + ... + 1122233.

It is an arithmetic number, because the mean of its divisors is an integer number (6733320).

Almost surely, 2^31422146 is an apocalyptic number.

31422146 is a deficient number, since it is larger than the sum of its proper divisors (22444414).

31422146 is a wasteful number, since it uses less digits than its factorization.

31422146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244448.

The product of its digits is 1152, while the sum is 23.

The square root of 31422146 is about 5605.5460037359. The cubic root of 31422146 is about 315.5575780047.

Adding to 31422146 its reverse (64122413), we get a palindrome (95544559).

The spelling of 31422146 in words is "thirty-one million, four hundred twenty-two thousand, one hundred forty-six".