31354542 has 24 divisors (see below), whose sum is σ = 68187600. Its totient is φ = 10412640.

The previous prime is 31354537. The next prime is 31354553. The reversal of 31354542 is 24545313.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1959 + ... + 8157.

It is an arithmetic number, because the mean of its divisors is an integer number (2841150).

Almost surely, 2^31354542 is an apocalyptic number.

31354542 is an abundant number, since it is smaller than the sum of its proper divisors (36833058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31354542 is a wasteful number, since it uses less digits than its factorization.

31354542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6488 (or 6485 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 31354542 is about 5599.5126573658. The cubic root of 31354542 is about 315.3311106385.

Adding to 31354542 its reverse (24545313), we get a palindrome (55899855).

The spelling of 31354542 in words is "thirty-one million, three hundred fifty-four thousand, five hundred forty-two".