31404122 has 8 divisors (see below), whose sum is σ = 47304000. Its totient is φ = 15636124.

The previous prime is 31404119. The next prime is 31404127. The reversal of 31404122 is 22140413.

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

It is a self number, because there is not a number n which added to its sum of digits gives 31404122.

It is not an unprimeable number, because it can be changed into a prime (31404127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32372 + ... + 33327.

It is an arithmetic number, because the mean of its divisors is an integer number (5913000).

Almost surely, 2^31404122 is an apocalyptic number.

31404122 is a deficient number, since it is larger than the sum of its proper divisors (15899878).

31404122 is a wasteful number, since it uses less digits than its factorization.

31404122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65940.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 31404122 is about 5603.9380796008. The cubic root of 31404122 is about 315.4972309953.

Adding to 31404122 its reverse (22140413), we get a palindrome (53544535).

The spelling of 31404122 in words is "thirty-one million, four hundred four thousand, one hundred twenty-two".