1057739543 has 8 divisors (see below), whose sum is σ = 1217543040. Its totient is φ = 900110520.

The previous prime is 1057739537. The next prime is 1057739549. The reversal of 1057739543 is 3459377501.

It is an interprime number because it is at equal distance from previous prime (1057739537) and next prime (1057739549).

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 1057739543 - 2¹² = 1057735447 is a prime.

It is a super-2 number, since 2×1057739543² = 2237625881651697698, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1057739494 and 1057739503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057739549) 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, 542573 + ... + 544518.

It is an arithmetic number, because the mean of its divisors is an integer number (152192880).

Almost surely, 2^1057739543 is an apocalyptic number.

1057739543 is a deficient number, since it is larger than the sum of its proper divisors (159803497).

1057739543 is a wasteful number, since it uses less digits than its factorization.

1057739543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087237.

The product of its (nonzero) digits is 396900, while the sum is 44.

The square root of 1057739543 is about 32522.9079726890. The cubic root of 1057739543 is about 1018.8875295880.

The spelling of 1057739543 in words is "one billion, fifty-seven million, seven hundred thirty-nine thousand, five hundred forty-three".