1161213029 has 16 divisors (see below), whose sum is σ = 1243589760. Its totient is φ = 1081597440.

The previous prime is 1161213017. The next prime is 1161213047. The reversal of 1161213029 is 9203121611.

It is a cyclic number.

It is not a de Polignac number, because 1161213029 - 2¹² = 1161208933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1161212989 and 1161213007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161213829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 779117 + ... + 780605.

It is an arithmetic number, because the mean of its divisors is an integer number (77724360).

Almost surely, 2^1161213029 is an apocalyptic number.

It is an amenable number.

1161213029 is a deficient number, since it is larger than the sum of its proper divisors (82376731).

1161213029 is a wasteful number, since it uses less digits than its factorization.

1161213029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 1161213029 is about 34076.5759576868. The cubic root of 1161213029 is about 1051.0836971636.

The spelling of 1161213029 in words is "one billion, one hundred sixty-one million, two hundred thirteen thousand, twenty-nine".