31453653 has 16 divisors (see below), whose sum is σ = 52286976. Its totient is φ = 16339440.

The previous prime is 31453651. The next prime is 31453679. The reversal of 31453653 is 35635413.

It is a happy number.

It is not a de Polignac number, because 31453653 - 2¹ = 31453651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31453653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31453651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67851 + ... + 68312.

It is an arithmetic number, because the mean of its divisors is an integer number (3267936).

Almost surely, 2^31453653 is an apocalyptic number.

31453653 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31453653 is a deficient number, since it is larger than the sum of its proper divisors (20833323).

31453653 is a wasteful number, since it uses less digits than its factorization.

31453653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136184.

The product of its digits is 16200, while the sum is 30.

The square root of 31453653 is about 5608.3556413623. The cubic root of 31453653 is about 315.6630126815.

The spelling of 31453653 in words is "thirty-one million, four hundred fifty-three thousand, six hundred fifty-three".