146238161 has 4 divisors (see below), whose sum is σ = 146340672. Its totient is φ = 146135652.

The previous prime is 146238151. The next prime is 146238173. The reversal of 146238161 is 161832641.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146238161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (146238101) 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, 49085 + ... + 51978.

It is an arithmetic number, because the mean of its divisors is an integer number (36585168).

Almost surely, 2^146238161 is an apocalyptic number.

It is an amenable number.

146238161 is a deficient number, since it is larger than the sum of its proper divisors (102511).

146238161 is a wasteful number, since it uses less digits than its factorization.

146238161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102510.

The product of its digits is 6912, while the sum is 32.

The square root of 146238161 is about 12092.8971301339. The cubic root of 146238161 is about 526.8499045059.

The spelling of 146238161 in words is "one hundred forty-six million, two hundred thirty-eight thousand, one hundred sixty-one".