1071159243 has 32 divisors (see below), whose sum is σ = 1858056192. Its totient is φ = 532250400.

The previous prime is 1071159223. The next prime is 1071159251. The reversal of 1071159243 is 3429511701.

It is not a de Polignac number, because 1071159243 - 2⁵ = 1071159211 is a prime.

It is a super-2 number, since 2×1071159243² = 2294764247728666098, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1071159223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95493 + ... + 106118.

It is an arithmetic number, because the mean of its divisors is an integer number (58064256).

Almost surely, 2^1071159243 is an apocalyptic number.

1071159243 is a deficient number, since it is larger than the sum of its proper divisors (786896949).

1071159243 is a wasteful number, since it uses less digits than its factorization.

1071159243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201655.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 1071159243 is about 32728.5692171228. The cubic root of 1071159243 is about 1023.1783605174.

The spelling of 1071159243 in words is "one billion, seventy-one million, one hundred fifty-nine thousand, two hundred forty-three".