161422535 has 8 divisors (see below), whose sum is σ = 198431856. Its totient is φ = 125988160.

The previous prime is 161422529. The next prime is 161422553. The reversal of 161422535 is 535224161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 161422535 - 2⁴ = 161422519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161422498 and 161422507.

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, 393509 + ... + 393918.

It is an arithmetic number, because the mean of its divisors is an integer number (24803982).

Almost surely, 2^161422535 is an apocalyptic number.

161422535 is a deficient number, since it is larger than the sum of its proper divisors (37009321).

161422535 is an equidigital number, since it uses as much as digits as its factorization.

161422535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787473.

The product of its digits is 7200, while the sum is 29.

The square root of 161422535 is about 12705.2168419118. The cubic root of 161422535 is about 544.4876761065.

Adding to 161422535 its reverse (535224161), we get a palindrome (696646696).

The spelling of 161422535 in words is "one hundred sixty-one million, four hundred twenty-two thousand, five hundred thirty-five".