146159661 has 4 divisors (see below), whose sum is σ = 194879552. Its totient is φ = 97439772.

The previous prime is 146159653. The next prime is 146159669. The reversal of 146159661 is 166951641.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (146159653) and next prime (146159669).

It is not a de Polignac number, because 146159661 - 2³ = 146159653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146159669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24359941 + ... + 24359946.

It is an arithmetic number, because the mean of its divisors is an integer number (48719888).

Almost surely, 2^146159661 is an apocalyptic number.

It is an amenable number.

146159661 is a deficient number, since it is larger than the sum of its proper divisors (48719891).

146159661 is an equidigital number, since it uses as much as digits as its factorization.

146159661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48719890.

The product of its digits is 38880, while the sum is 39.

The square root of 146159661 is about 12089.6509875182. The cubic root of 146159661 is about 526.7556173977.

The spelling of 146159661 in words is "one hundred forty-six million, one hundred fifty-nine thousand, six hundred sixty-one".