1023413653 has 8 divisors (see below), whose sum is σ = 1041591320. Its totient is φ = 1005281280.

The previous prime is 1023413627. The next prime is 1023413687. The reversal of 1023413653 is 3563143201.

It can be written as a sum of positive squares in 4 ways, for example, as 16176484 + 1007237169 = 4022^2 + 31737^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1023413653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023410653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36001 + ... + 57817.

It is an arithmetic number, because the mean of its divisors is an integer number (130198915).

Almost surely, 2^1023413653 is an apocalyptic number.

It is an amenable number.

1023413653 is a deficient number, since it is larger than the sum of its proper divisors (18177667).

1023413653 is an equidigital number, since it uses as much as digits as its factorization.

1023413653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22647.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 1023413653 is about 31990.8370162458. The cubic root of 1023413653 is about 1007.7444201303.

Adding to 1023413653 its reverse (3563143201), we get a palindrome (4586556854).

The spelling of 1023413653 in words is "one billion, twenty-three million, four hundred thirteen thousand, six hundred fifty-three".