146001640 has 32 divisors (see below), whose sum is σ = 328941000. Its totient is φ = 58322944.

The previous prime is 146001637. The next prime is 146001649. The reversal of 146001640 is 46100641.

It can be written as a sum of positive squares in 4 ways, for example, as 44435556 + 101566084 = 6666^2 + 10078^2 .

It is not an unprimeable number, because it can be changed into a prime (146001649) 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, 35196 + ... + 39124.

Almost surely, 2^146001640 is an apocalyptic number.

146001640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146001640 is an abundant number, since it is smaller than the sum of its proper divisors (182939360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

146001640 is a wasteful number, since it uses less digits than its factorization.

146001640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4869 (or 4865 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 146001640 is about 12083.1138370869. The cubic root of 146001640 is about 526.5657144183.

Subtracting from 146001640 its reverse (46100641), we obtain a palindrome (99900999).

It can be divided in two parts, 146001 and 640, that added together give a palindrome (146641).

The spelling of 146001640 in words is "one hundred forty-six million, one thousand, six hundred forty".