163611434 has 16 divisors (see below), whose sum is σ = 296975808. Its totient is φ = 65994432.

The previous prime is 163611421. The next prime is 163611467. The reversal of 163611434 is 434116361.

It is a junction number, because it is equal to n+sod(n) for n = 163611397 and 163611406.

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, 343484 + ... + 343959.

It is an arithmetic number, because the mean of its divisors is an integer number (18560988).

Almost surely, 2^163611434 is an apocalyptic number.

163611434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

163611434 is a deficient number, since it is larger than the sum of its proper divisors (133364374).

163611434 is a wasteful number, since it uses less digits than its factorization.

163611434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687469.

The product of its digits is 5184, while the sum is 29.

The square root of 163611434 is about 12791.0685245604. The cubic root of 163611434 is about 546.9377298557.

Adding to 163611434 its reverse (434116361), we get a palindrome (597727795).

The spelling of 163611434 in words is "one hundred sixty-three million, six hundred eleven thousand, four hundred thirty-four".