161825078 has 8 divisors (see below), whose sum is σ = 242902800. Its totient is φ = 80857480.

The previous prime is 161825077. The next prime is 161825093. The reversal of 161825078 is 870528161.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161825077) 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, 23753 + ... + 29796.

It is an arithmetic number, because the mean of its divisors is an integer number (30362850).

Almost surely, 2^161825078 is an apocalyptic number.

161825078 is a deficient number, since it is larger than the sum of its proper divisors (81077722).

161825078 is a wasteful number, since it uses less digits than its factorization.

161825078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55062.

The product of its (nonzero) digits is 26880, while the sum is 38.

The square root of 161825078 is about 12721.0486202986. The cubic root of 161825078 is about 544.9399007881.

The spelling of 161825078 in words is "one hundred sixty-one million, eight hundred twenty-five thousand, seventy-eight".