31225425146 has 8 divisors (see below), whose sum is σ = 47632004640. Its totient is φ = 15348090268.

The previous prime is 31225425131. The next prime is 31225425169. The reversal of 31225425146 is 64152452213.

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

It is an unprimeable number.

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, 132311006 + ... + 132311241.

It is an arithmetic number, because the mean of its divisors is an integer number (5954000580).

Almost surely, 2^31225425146 is an apocalyptic number.

31225425146 is a deficient number, since it is larger than the sum of its proper divisors (16406579494).

31225425146 is a wasteful number, since it uses less digits than its factorization.

31225425146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264622308.

The product of its digits is 57600, while the sum is 35.

Adding to 31225425146 its reverse (64152452213), we get a palindrome (95377877359).

The spelling of 31225425146 in words is "thirty-one billion, two hundred twenty-five million, four hundred twenty-five thousand, one hundred forty-six".