161025354235 has 4 divisors (see below), whose sum is σ = 193230425088. Its totient is φ = 128820283384.

The previous prime is 161025354223. The next prime is 161025354341. The reversal of 161025354235 is 532453520161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 532453520161 = 107 ⋅4976201123.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161025354235 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161025354194 and 161025354203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16102535419 + ... + 16102535428.

It is an arithmetic number, because the mean of its divisors is an integer number (48307606272).

Almost surely, 2^161025354235 is an apocalyptic number.

161025354235 is a deficient number, since it is larger than the sum of its proper divisors (32205070853).

161025354235 is an equidigital number, since it uses as much as digits as its factorization.

161025354235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32205070852.

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 161025354235 its reverse (532453520161), we get a palindrome (693478874396).

The spelling of 161025354235 in words is "one hundred sixty-one billion, twenty-five million, three hundred fifty-four thousand, two hundred thirty-five".