31073532653 has 4 divisors (see below), whose sum is σ = 32708981760. Its totient is φ = 29438083548.

The previous prime is 31073532647. The next prime is 31073532661. The reversal of 31073532653 is 35623537013.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35623537013 = 229 ⋅155561297.

It is a cyclic number.

It is not a de Polignac number, because 31073532653 - 2¹⁸ = 31073270509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31073535653) by changing a digit.

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, 817724525 + ... + 817724562.

It is an arithmetic number, because the mean of its divisors is an integer number (8177245440).

Almost surely, 2^31073532653 is an apocalyptic number.

It is an amenable number.

31073532653 is a deficient number, since it is larger than the sum of its proper divisors (1635449107).

31073532653 is a wasteful number, since it uses less digits than its factorization.

31073532653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635449106.

The product of its (nonzero) digits is 170100, while the sum is 38.

The spelling of 31073532653 in words is "thirty-one billion, seventy-three million, five hundred thirty-two thousand, six hundred fifty-three".