161535245 has 8 divisors (see below), whose sum is σ = 204044640. Its totient is φ = 122426640.

The previous prime is 161535217. The next prime is 161535263. The reversal of 161535245 is 542535161.

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-161535245 is a prime.

It is a Curzon number.

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, 850091 + ... + 850280.

It is an arithmetic number, because the mean of its divisors is an integer number (25505580).

Almost surely, 2^161535245 is an apocalyptic number.

It is an amenable number.

161535245 is a deficient number, since it is larger than the sum of its proper divisors (42509395).

161535245 is a wasteful number, since it uses less digits than its factorization.

161535245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700395.

The product of its digits is 18000, while the sum is 32.

The square root of 161535245 is about 12709.6516474685. The cubic root of 161535245 is about 544.6143724364.

The spelling of 161535245 in words is "one hundred sixty-one million, five hundred thirty-five thousand, two hundred forty-five".