1052381245 has 4 divisors (see below), whose sum is σ = 1262857500. Its totient is φ = 841904992.

The previous prime is 1052381237. The next prime is 1052381251. The reversal of 1052381245 is 5421832501.

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 594335641 + 458045604 = 24379^2 + 21402^2 .

It is a cyclic number.

It is not a de Polignac number, because 1052381245 - 2³ = 1052381237 is a prime.

It is a super-2 number, since 2×1052381245² = 2215012569655500050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105238120 + ... + 105238129.

It is an arithmetic number, because the mean of its divisors is an integer number (315714375).

Almost surely, 2^1052381245 is an apocalyptic number.

It is an amenable number.

1052381245 is a deficient number, since it is larger than the sum of its proper divisors (210476255).

1052381245 is an equidigital number, since it uses as much as digits as its factorization.

1052381245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210476254.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 1052381245 is about 32440.4260915297. The cubic root of 1052381245 is about 1017.1641223467.

The spelling of 1052381245 in words is "one billion, fifty-two million, three hundred eighty-one thousand, two hundred forty-five".