146001231 has 16 divisors (see below), whose sum is σ = 217404000. Its totient is φ = 96836544.

The previous prime is 146001209. The next prime is 146001269. The reversal of 146001231 is 132100641.

It is a happy number.

It is not a de Polignac number, because 146001231 - 2¹³ = 145993039 is a prime.

It is a super-2 number, since 2×146001231² = 42632718907030722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146001281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8406 + ... + 19043.

It is an arithmetic number, because the mean of its divisors is an integer number (13587750).

Almost surely, 2^146001231 is an apocalyptic number.

146001231 is a deficient number, since it is larger than the sum of its proper divisors (71402769).

146001231 is a wasteful number, since it uses less digits than its factorization.

146001231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27655 (or 27649 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 146001231 is about 12083.0969126296. The cubic root of 146001231 is about 526.5652227216.

Adding to 146001231 its reverse (132100641), we get a palindrome (278101872).

The spelling of 146001231 in words is "one hundred forty-six million, one thousand, two hundred thirty-one".