1045203413 has 4 divisors (see below), whose sum is σ = 1081244940. Its totient is φ = 1009161888.

The previous prime is 1045203361. The next prime is 1045203431. The reversal of 1045203413 is 3143025401.

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 758341444 + 286861969 = 27538^2 + 16937^2 .

It is a cyclic number.

It is not a de Polignac number, because 1045203413 - 2⁸ = 1045203157 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 (1045203473) 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, 18020720 + ... + 18020777.

It is an arithmetic number, because the mean of its divisors is an integer number (270311235).

Almost surely, 2^1045203413 is an apocalyptic number.

It is an amenable number.

1045203413 is a deficient number, since it is larger than the sum of its proper divisors (36041527).

1045203413 is an equidigital number, since it uses as much as digits as its factorization.

1045203413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36041526.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1045203413 is about 32329.6058280951. The cubic root of 1045203413 is about 1014.8463009117.

Adding to 1045203413 its reverse (3143025401), we get a palindrome (4188228814).

The spelling of 1045203413 in words is "one billion, forty-five million, two hundred three thousand, four hundred thirteen".