161429 has 4 divisors (see below), whose sum is σ = 163020. Its totient is φ = 159840.

The previous prime is 161411. The next prime is 161453. The reversal of 161429 is 924161.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 91204 + 70225 = 302^2 + 265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 161429.

It is not an unprimeable number, because it can be changed into a prime (161459) 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, 632 + ... + 849.

It is an arithmetic number, because the mean of its divisors is an integer number (40755).

2¹⁶¹⁴²⁹ is an apocalyptic number.

It is an amenable number.

161429 is a deficient number, since it is larger than the sum of its proper divisors (1591).

161429 is a wasteful number, since it uses less digits than its factorization.

161429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590.

The product of its digits is 432, while the sum is 23.

The square root of 161429 is about 401.7822793504. The cubic root of 161429 is about 54.4494944951.

The spelling of 161429 in words is "one hundred sixty-one thousand, four hundred twenty-nine".