161104497 has 8 divisors (see below), whose sum is σ = 214885440. Its totient is φ = 107363280.

The previous prime is 161104469. The next prime is 161104499. The reversal of 161104497 is 794401161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 161104497 - 2¹⁹ = 160580209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161104499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1372 + ... + 18002.

It is an arithmetic number, because the mean of its divisors is an integer number (26860680).

Almost surely, 2^161104497 is an apocalyptic number.

It is an amenable number.

161104497 is a deficient number, since it is larger than the sum of its proper divisors (53780943).

161104497 is a wasteful number, since it uses less digits than its factorization.

161104497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19863.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 161104497 is about 12692.6946311648. The cubic root of 161104497 is about 544.1298540663.

The spelling of 161104497 in words is "one hundred sixty-one million, one hundred four thousand, four hundred ninety-seven".