31422061 has 4 divisors (see below), whose sum is σ = 34278624. Its totient is φ = 28565500.

The previous prime is 31422059. The next prime is 31422077. The reversal of 31422061 is 16022413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31422061 - 2¹ = 31422059 is a prime.

It is a super-3 number, since 3×31422061³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31422011) 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, 1428265 + ... + 1428286.

It is an arithmetic number, because the mean of its divisors is an integer number (8569656).

Almost surely, 2^31422061 is an apocalyptic number.

It is an amenable number.

31422061 is a deficient number, since it is larger than the sum of its proper divisors (2856563).

31422061 is a wasteful number, since it uses less digits than its factorization.

31422061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2856562.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 31422061 is about 5605.5384219538. The cubic root of 31422061 is about 315.5572934663.

Adding to 31422061 its reverse (16022413), we get a palindrome (47444474).

The spelling of 31422061 in words is "thirty-one million, four hundred twenty-two thousand, sixty-one".