1023813955 has 8 divisors (see below), whose sum is σ = 1293238800. Its totient is φ = 775943136.

The previous prime is 1023813953. The next prime is 1023813983. The reversal of 1023813955 is 5593183201.

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 1023813955 - 2¹ = 1023813953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1023813953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5388400 + ... + 5388589.

It is an arithmetic number, because the mean of its divisors is an integer number (161654850).

Almost surely, 2^1023813955 is an apocalyptic number.

1023813955 is a deficient number, since it is larger than the sum of its proper divisors (269424845).

1023813955 is a wasteful number, since it uses less digits than its factorization.

1023813955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10777013.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 1023813955 is about 31997.0929148259. The cubic root of 1023813955 is about 1007.8757940282.

The spelling of 1023813955 in words is "one billion, twenty-three million, eight hundred thirteen thousand, nine hundred fifty-five".