1057430365 has 4 divisors (see below), whose sum is σ = 1268916444. Its totient is φ = 845944288.

The previous prime is 1057430357. The next prime is 1057430369. The reversal of 1057430365 is 5630347501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5630347501 = 19 ⋅296334079.

It can be written as a sum of positive squares in 2 ways, for example, as 372142681 + 685287684 = 19291^2 + 26178^2 .

It is a cyclic number.

It is not a de Polignac number, because 1057430365 - 2³ = 1057430357 is a prime.

It is a super-2 number, since 2×1057430365² = 2236317953648066450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1057430365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057430369) 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, 105743032 + ... + 105743041.

It is an arithmetic number, because the mean of its divisors is an integer number (317229111).

Almost surely, 2^1057430365 is an apocalyptic number.

It is an amenable number.

1057430365 is a deficient number, since it is larger than the sum of its proper divisors (211486079).

1057430365 is an equidigital number, since it uses as much as digits as its factorization.

1057430365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211486078.

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 1057430365 is about 32518.1543910475. The cubic root of 1057430365 is about 1018.7882460706.

Adding to 1057430365 its reverse (5630347501), we get a palindrome (6687777866).

The spelling of 1057430365 in words is "one billion, fifty-seven million, four hundred thirty thousand, three hundred sixty-five".