161039229 has 16 divisors (see below), whose sum is σ = 231561792. Its totient is φ = 98961408.

The previous prime is 161039191. The next prime is 161039239. The reversal of 161039229 is 922930161.

It is not a de Polignac number, because 161039229 - 2⁷ = 161039101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161039229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161039239) 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, 29757 + ... + 34749.

It is an arithmetic number, because the mean of its divisors is an integer number (14472612).

Almost surely, 2^161039229 is an apocalyptic number.

It is an amenable number.

161039229 is a deficient number, since it is larger than the sum of its proper divisors (70522563).

161039229 is a wasteful number, since it uses less digits than its factorization.

161039229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5836.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 161039229 is about 12690.1232854531. The cubic root of 161039229 is about 544.0563633300.

The spelling of 161039229 in words is "one hundred sixty-one million, thirty-nine thousand, two hundred twenty-nine".