1045988623 has 4 divisors (see below), whose sum is σ = 1056345048. Its totient is φ = 1035632200.

The previous prime is 1045988599. The next prime is 1045988651. The reversal of 1045988623 is 3268895401.

1045988623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1045988623 - 2⁵ = 1045988591 is a prime.

It is a super-2 number, since 2×1045988623² = 2188184398890872258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045988663) 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, 5178061 + ... + 5178262.

It is an arithmetic number, because the mean of its divisors is an integer number (264086262).

Almost surely, 2^1045988623 is an apocalyptic number.

1045988623 is a deficient number, since it is larger than the sum of its proper divisors (10356425).

1045988623 is a wasteful number, since it uses less digits than its factorization.

1045988623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10356424.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 1045988623 is about 32341.7473708518. The cubic root of 1045988623 is about 1015.1003720294.

The spelling of 1045988623 in words is "one billion, forty-five million, nine hundred eighty-eight thousand, six hundred twenty-three".