161386435 has 8 divisors (see below), whose sum is σ = 221330016. Its totient is φ = 110664960.

The previous prime is 161386387. The next prime is 161386441. The reversal of 161386435 is 534683161.

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

It is a de Polignac number, because none of the positive numbers 2^k-161386435 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161386394 and 161386403.

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, 2305486 + ... + 2305555.

It is an arithmetic number, because the mean of its divisors is an integer number (27666252).

Almost surely, 2^161386435 is an apocalyptic number.

161386435 is a deficient number, since it is larger than the sum of its proper divisors (59943581).

161386435 is an equidigital number, since it uses as much as digits as its factorization.

161386435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4611053.

The product of its digits is 51840, while the sum is 37.

The square root of 161386435 is about 12703.7960862098. The cubic root of 161386435 is about 544.4470839414.

The spelling of 161386435 in words is "one hundred sixty-one million, three hundred eighty-six thousand, four hundred thirty-five".