161232797 has 4 divisors (see below), whose sum is σ = 175890336. Its totient is φ = 146575260.

The previous prime is 161232793. The next prime is 161232833. The reversal of 161232797 is 797232161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 161232797 - 2² = 161232793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161232797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161232793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7328753 + ... + 7328774.

It is an arithmetic number, because the mean of its divisors is an integer number (43972584).

Almost surely, 2^161232797 is an apocalyptic number.

It is an amenable number.

161232797 is a deficient number, since it is larger than the sum of its proper divisors (14657539).

161232797 is a wasteful number, since it uses less digits than its factorization.

161232797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14657538.

The product of its digits is 31752, while the sum is 38.

The square root of 161232797 is about 12697.7477136695. The cubic root of 161232797 is about 544.2742600007.

The spelling of 161232797 in words is "one hundred sixty-one million, two hundred thirty-two thousand, seven hundred ninety-seven".