1045551223 has 4 divisors (see below), whose sum is σ = 1045852528. Its totient is φ = 1045249920.

The previous prime is 1045551191. The next prime is 1045551251. The reversal of 1045551223 is 3221555401.

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 1045551223 - 2⁵ = 1045551191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1045551191 and 1045551200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045551523) 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, 145386 + ... + 152407.

It is an arithmetic number, because the mean of its divisors is an integer number (261463132).

Almost surely, 2^1045551223 is an apocalyptic number.

1045551223 is a deficient number, since it is larger than the sum of its proper divisors (301305).

1045551223 is an equidigital number, since it uses as much as digits as its factorization.

1045551223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301304.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1045551223 is about 32334.9845059496. The cubic root of 1045551223 is about 1014.9588578048.

The spelling of 1045551223 in words is "one billion, forty-five million, five hundred fifty-one thousand, two hundred twenty-three".