161004695 has 4 divisors (see below), whose sum is σ = 193205640. Its totient is φ = 128803752.

The previous prime is 161004691. The next prime is 161004707. The reversal of 161004695 is 596400161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 596400161 = 7 ⋅85200023.

It is a cyclic number.

It is not a de Polignac number, because 161004695 - 2² = 161004691 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161004691) 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, 16100465 + ... + 16100474.

It is an arithmetic number, because the mean of its divisors is an integer number (48301410).

Almost surely, 2^161004695 is an apocalyptic number.

161004695 is a deficient number, since it is larger than the sum of its proper divisors (32200945).

161004695 is an equidigital number, since it uses as much as digits as its factorization.

161004695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32200944.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 161004695 is about 12688.7625480186. The cubic root of 161004695 is about 544.0174705588.

The spelling of 161004695 in words is "one hundred sixty-one million, four thousand, six hundred ninety-five".