1162251543 has 4 divisors (see below), whose sum is σ = 1549668728. Its totient is φ = 774834360.

The previous prime is 1162251523. The next prime is 1162251547. The reversal of 1162251543 is 3451522611.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1162251543 - 2²⁰ = 1161202967 is a prime.

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 1162251543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1162251547) 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, 193708588 + ... + 193708593.

It is an arithmetic number, because the mean of its divisors is an integer number (387417182).

Almost surely, 2^1162251543 is an apocalyptic number.

1162251543 is a deficient number, since it is larger than the sum of its proper divisors (387417185).

1162251543 is an equidigital number, since it uses as much as digits as its factorization.

1162251543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387417184.

The product of its digits is 7200, while the sum is 30.

The square root of 1162251543 is about 34091.8104975374. The cubic root of 1162251543 is about 1051.3969442769.

The spelling of 1162251543 in words is "one billion, one hundred sixty-two million, two hundred fifty-one thousand, five hundred forty-three".