1043651423 has 4 divisors (see below), whose sum is σ = 1044127368. Its totient is φ = 1043175480.

The previous prime is 1043651387. The next prime is 1043651447. The reversal of 1043651423 is 3241563401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1043651423 - 2¹⁴ = 1043635039 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 (1043650423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234668 + ... + 239073.

It is an arithmetic number, because the mean of its divisors is an integer number (261031842).

Almost surely, 2^1043651423 is an apocalyptic number.

1043651423 is a deficient number, since it is larger than the sum of its proper divisors (475945).

1043651423 is an equidigital number, since it uses as much as digits as its factorization.

1043651423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475944.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1043651423 is about 32305.5942988208. The cubic root of 1043651423 is about 1014.3437475311.

The spelling of 1043651423 in words is "one billion, forty-three million, six hundred fifty-one thousand, four hundred twenty-three".