102400653 has 8 divisors (see below), whose sum is σ = 141242400. Its totient is φ = 65913008.

The previous prime is 102400651. The next prime is 102400663. The reversal of 102400653 is 356004201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102400653 - 2¹ = 102400651 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102400651) 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 7 ways as a sum of consecutive naturals, for example, 588423 + ... + 588596.

It is an arithmetic number, because the mean of its divisors is an integer number (17655300).

Almost surely, 2^102400653 is an apocalyptic number.

It is an amenable number.

102400653 is a deficient number, since it is larger than the sum of its proper divisors (38841747).

102400653 is a wasteful number, since it uses less digits than its factorization.

102400653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177051.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 102400653 is about 10119.3207776016. The cubic root of 102400653 is about 467.8438325826.

Adding to 102400653 its reverse (356004201), we get a palindrome (458404854).

The spelling of 102400653 in words is "one hundred two million, four hundred thousand, six hundred fifty-three".