1057061243 has 16 divisors (see below), whose sum is σ = 1226612160. Its totient is φ = 892187136.

The previous prime is 1057061197. The next prime is 1057061273. The reversal of 1057061243 is 3421607501.

It is a cyclic number.

It is not a de Polignac number, because 1057061243 - 2⁶ = 1057061179 is a prime.

It is a super-2 number, since 2×1057061243² = 2234756942905410098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1057061273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412121 + ... + 414677.

It is an arithmetic number, because the mean of its divisors is an integer number (76663260).

Almost surely, 2^1057061243 is an apocalyptic number.

1057061243 is a deficient number, since it is larger than the sum of its proper divisors (169550917).

1057061243 is an equidigital number, since it uses as much as digits as its factorization.

1057061243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3446.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 1057061243 is about 32512.4782660443. The cubic root of 1057061243 is about 1018.6696879341.

Adding to 1057061243 its reverse (3421607501), we get a palindrome (4478668744).

The spelling of 1057061243 in words is "one billion, fifty-seven million, sixty-one thousand, two hundred forty-three".