1051321045 has 8 divisors (see below), whose sum is σ = 1265025024. Its totient is φ = 838763664.

The previous prime is 1051321043. The next prime is 1051321049. The reversal of 1051321045 is 5401231501.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1051321045 - 2¹ = 1051321043 is a prime.

It is a super-2 number, since 2×1051321045² = 2210551879319784050, 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 (1051321043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284629 + ... + 288298.

It is an arithmetic number, because the mean of its divisors is an integer number (158128128).

Almost surely, 2^1051321045 is an apocalyptic number.

It is an amenable number.

1051321045 is a deficient number, since it is larger than the sum of its proper divisors (213703979).

1051321045 is an equidigital number, since it uses as much as digits as its factorization.

1051321045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573299.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1051321045 is about 32424.0812514403. The cubic root of 1051321045 is about 1016.8224338357.

Adding to 1051321045 its reverse (5401231501), we get a palindrome (6452552546).

The spelling of 1051321045 in words is "one billion, fifty-one million, three hundred twenty-one thousand, forty-five".