161700494 has 8 divisors (see below), whose sum is σ = 242623128. Its totient is φ = 80826120.

The previous prime is 161700463. The next prime is 161700521. The reversal of 161700494 is 494007161.

161700494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×161700494² = 52294099519688072, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161700494.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2012 + ... + 18095.

It is an arithmetic number, because the mean of its divisors is an integer number (30327891).

Almost surely, 2^161700494 is an apocalyptic number.

161700494 is a deficient number, since it is larger than the sum of its proper divisors (80922634).

161700494 is a wasteful number, since it uses less digits than its factorization.

161700494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24130.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 161700494 is about 12716.1509113411. The cubic root of 161700494 is about 544.8000208980.

The spelling of 161700494 in words is "one hundred sixty-one million, seven hundred thousand, four hundred ninety-four".