1051453439 has 4 divisors (see below), whose sum is σ = 1053007224. Its totient is φ = 1049899656.

The previous prime is 1051453433. The next prime is 1051453499. The reversal of 1051453439 is 9343541501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9343541501 = 7 ⋅1334791643.

It is a cyclic number.

It is not a de Polignac number, because 1051453439 - 2¹⁶ = 1051387903 is a prime.

It is a super-2 number, since 2×1051453439² = 2211108668769853442, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1051453399 and 1051453408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051453433) 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, 775877 + ... + 777230.

It is an arithmetic number, because the mean of its divisors is an integer number (263251806).

Almost surely, 2^1051453439 is an apocalyptic number.

1051453439 is a deficient number, since it is larger than the sum of its proper divisors (1553785).

1051453439 is an equidigital number, since it uses as much as digits as its factorization.

1051453439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553784.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 1051453439 is about 32426.1227870370. The cubic root of 1051453439 is about 1016.8651152282.

The spelling of 1051453439 in words is "one billion, fifty-one million, four hundred fifty-three thousand, four hundred thirty-nine".