1161629043 has 4 divisors (see below), whose sum is σ = 1548838728. Its totient is φ = 774419360.

The previous prime is 1161629041. The next prime is 1161629059. The reversal of 1161629043 is 3409261611.

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

It is a cyclic number.

It is not a de Polignac number, because 1161629043 - 2¹ = 1161629041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1161628995 and 1161629013.

It is not an unprimeable number, because it can be changed into a prime (1161629041) 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, 193604838 + ... + 193604843.

It is an arithmetic number, because the mean of its divisors is an integer number (387209682).

Almost surely, 2^1161629043 is an apocalyptic number.

1161629043 is a deficient number, since it is larger than the sum of its proper divisors (387209685).

1161629043 is an equidigital number, since it uses as much as digits as its factorization.

1161629043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387209684.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 1161629043 is about 34082.6795161413. The cubic root of 1161629043 is about 1051.2092019346.

The spelling of 1161629043 in words is "one billion, one hundred sixty-one million, six hundred twenty-nine thousand, forty-three".