202653023 has 24 divisors (see below), whose sum is σ = 221907840. Its totient is φ = 184892400.

The previous prime is 202653013. The next prime is 202653029. The reversal of 202653023 is 320356202.

It is a happy number.

It is not a de Polignac number, because 202653023 - 2¹⁸ = 202390879 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

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 202653023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202653029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1341998 + ... + 1342148.

It is an arithmetic number, because the mean of its divisors is an integer number (9246160).

Almost surely, 2^202653023 is an apocalyptic number.

202653023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

202653023 is a deficient number, since it is larger than the sum of its proper divisors (19254817).

202653023 is a wasteful number, since it uses less digits than its factorization.

202653023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 202653023 is about 14235.6251355534. The cubic root of 202653023 is about 587.3780261645.

The spelling of 202653023 in words is "two hundred two million, six hundred fifty-three thousand, twenty-three".