146163641 has 4 divisors (see below), whose sum is σ = 157407012. Its totient is φ = 134920272.

The previous prime is 146163631. The next prime is 146163679. The reversal of 146163641 is 146361641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 146361641 = 79 ⋅1852679.

It can be written as a sum of positive squares in 2 ways, for example, as 94381225 + 51782416 = 9715^2 + 7196^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146163641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 146163598 and 146163607.

It is not an unprimeable number, because it can be changed into a prime (146163631) 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, 5621666 + ... + 5621691.

It is an arithmetic number, because the mean of its divisors is an integer number (39351753).

Almost surely, 2^146163641 is an apocalyptic number.

It is an amenable number.

146163641 is a deficient number, since it is larger than the sum of its proper divisors (11243371).

146163641 is a wasteful number, since it uses less digits than its factorization.

146163641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11243370.

The product of its digits is 10368, while the sum is 32.

The square root of 146163641 is about 12089.8155899914. The cubic root of 146163641 is about 526.7603986265.

The spelling of 146163641 in words is "one hundred forty-six million, one hundred sixty-three thousand, six hundred forty-one".