31554049 has 4 divisors (see below), whose sum is σ = 31662036. Its totient is φ = 31446064.

The previous prime is 31554043. The next prime is 31554073. The reversal of 31554049 is 94045513.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28890625 + 2663424 = 5375^2 + 1632^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31554049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31554049.

It is not an unprimeable number, because it can be changed into a prime (31554043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53554 + ... + 54139.

It is an arithmetic number, because the mean of its divisors is an integer number (7915509).

Almost surely, 2^31554049 is an apocalyptic number.

It is an amenable number.

31554049 is a deficient number, since it is larger than the sum of its proper divisors (107987).

31554049 is a wasteful number, since it uses less digits than its factorization.

31554049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107986.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 31554049 is about 5617.2990840795. The cubic root of 31554049 is about 315.9985078443.

The spelling of 31554049 in words is "thirty-one million, five hundred fifty-four thousand, forty-nine".