1049137543 has 4 divisors (see below), whose sum is σ = 1050034648. Its totient is φ = 1048240440.

The previous prime is 1049137519. The next prime is 1049137549. The reversal of 1049137543 is 3457319401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3457319401 = 19 ⋅181964179.

It is a cyclic number.

It is not a de Polignac number, because 1049137543 - 2⁵ = 1049137511 is a prime.

It is a super-2 number, since 2×1049137543² = 2201379168264153698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1049137549) 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, 446796 + ... + 449137.

It is an arithmetic number, because the mean of its divisors is an integer number (262508662).

Almost surely, 2^1049137543 is an apocalyptic number.

1049137543 is a deficient number, since it is larger than the sum of its proper divisors (897105).

1049137543 is an equidigital number, since it uses as much as digits as its factorization.

1049137543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897104.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 1049137543 is about 32390.3927577299. The cubic root of 1049137543 is about 1016.1179954589.

The spelling of 1049137543 in words is "one billion, forty-nine million, one hundred thirty-seven thousand, five hundred forty-three".