161260598 has 4 divisors (see below), whose sum is σ = 241890900. Its totient is φ = 80630298.

The previous prime is 161260591. The next prime is 161260633. The reversal of 161260598 is 895062161.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161260591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40315148 + ... + 40315151.

It is an arithmetic number, because the mean of its divisors is an integer number (60472725).

Almost surely, 2^161260598 is an apocalyptic number.

161260598 is a deficient number, since it is larger than the sum of its proper divisors (80630302).

161260598 is an equidigital number, since it uses as much as digits as its factorization.

161260598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80630301.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 161260598 is about 12698.8423881864. The cubic root of 161260598 is about 544.3055408554.

The spelling of 161260598 in words is "one hundred sixty-one million, two hundred sixty thousand, five hundred ninety-eight".