1165343542 has 16 divisors (see below), whose sum is σ = 1942907472. Its totient is φ = 519706720.

The previous prime is 1165343539. The next prime is 1165343567. The reversal of 1165343542 is 2453435611.

It is a super-2 number, since 2×1165343542² = 2716051141762211528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1165343498 and 1165343507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498553 + ... + 500884.

It is an arithmetic number, because the mean of its divisors is an integer number (121431717).

Almost surely, 2^1165343542 is an apocalyptic number.

1165343542 is a deficient number, since it is larger than the sum of its proper divisors (777563930).

1165343542 is a wasteful number, since it uses less digits than its factorization.

1165343542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999503.

The product of its digits is 43200, while the sum is 34.

The square root of 1165343542 is about 34137.1284966970. The cubic root of 1165343542 is about 1052.3284809166.

The spelling of 1165343542 in words is "one billion, one hundred sixty-five million, three hundred forty-three thousand, five hundred forty-two".