2078148161 has 8 divisors (see below), whose sum is σ = 2238397920. Its totient is φ = 1922985792.

The previous prime is 2078148157. The next prime is 2078148173. The reversal of 2078148161 is 1618418702.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2078148161 - 2² = 2078148157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2078148101) 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, 1271000 + ... + 1272633.

It is an arithmetic number, because the mean of its divisors is an integer number (279799740).

Almost surely, 2^2078148161 is an apocalyptic number.

It is an amenable number.

2078148161 is a deficient number, since it is larger than the sum of its proper divisors (160249759).

2078148161 is a wasteful number, since it uses less digits than its factorization.

2078148161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2543695.

The product of its (nonzero) digits is 21504, while the sum is 38.

The square root of 2078148161 is about 45586.7103551024. The cubic root of 2078148161 is about 1276.1219213188.

The spelling of 2078148161 in words is "two billion, seventy-eight million, one hundred forty-eight thousand, one hundred sixty-one".