161094071 has 4 divisors (see below), whose sum is σ = 161663592. Its totient is φ = 160524552.

The previous prime is 161094067. The next prime is 161094079. The reversal of 161094071 is 170490161.

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

It is a cyclic number.

It is not a de Polignac number, because 161094071 - 2² = 161094067 is a prime.

It is a super-2 number, since 2×161094071² = 51902599422706082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161094079) 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, 284336 + ... + 284901.

It is an arithmetic number, because the mean of its divisors is an integer number (40415898).

Almost surely, 2^161094071 is an apocalyptic number.

161094071 is a deficient number, since it is larger than the sum of its proper divisors (569521).

161094071 is an equidigital number, since it uses as much as digits as its factorization.

161094071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569520.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 161094071 is about 12692.2839158285. The cubic root of 161094071 is about 544.1181158874.

The spelling of 161094071 in words is "one hundred sixty-one million, ninety-four thousand, seventy-one".