1138573 has 4 divisors (see below), whose sum is σ = 1149948. Its totient is φ = 1127200.

The previous prime is 1138567. The next prime is 1138589. The reversal of 1138573 is 3758311.

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

It can be written as a sum of positive squares in 2 ways, for example, as 751689 + 386884 = 867^2 + 622^2 .

It is a cyclic number.

It is not a de Polignac number, because 1138573 - 2⁹ = 1138061 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 (1138273) 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, 5536 + ... + 5737.

It is an arithmetic number, because the mean of its divisors is an integer number (287487).

2^1138573 is an apocalyptic number.

It is an amenable number.

1138573 is a deficient number, since it is larger than the sum of its proper divisors (11375).

1138573 is a wasteful number, since it uses less digits than its factorization.

1138573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11374.

The product of its digits is 2520, while the sum is 28.

The square root of 1138573 is about 1067.0393619731. The cubic root of 1138573 is about 104.4207865619.

It can be divided in two parts, 1138 and 573, that added together give a triangular number (1711 = T₅₈).

The spelling of 1138573 in words is "one million, one hundred thirty-eight thousand, five hundred seventy-three".