146676621 has 48 divisors (see below), whose sum is σ = 248786304. Its totient is φ = 75209472.

The previous prime is 146676617. The next prime is 146676641. The reversal of 146676621 is 126676641.

It is not a de Polignac number, because 146676621 - 2² = 146676617 is a prime.

It is a super-2 number, since 2×146676621² = 43028062295955282, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 146676621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146676611) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 130755 + ... + 131871.

It is an arithmetic number, because the mean of its divisors is an integer number (5183048).

Almost surely, 2^146676621 is an apocalyptic number.

It is an amenable number.

146676621 is a deficient number, since it is larger than the sum of its proper divisors (102109683).

146676621 is a wasteful number, since it uses less digits than its factorization.

146676621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190 (or 1177 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 146676621 is about 12111.0123854284. The cubic root of 146676621 is about 527.3759234391.

It can be divided in two parts, 1466 and 76621, that added together give a palindrome (78087).

The spelling of 146676621 in words is "one hundred forty-six million, six hundred seventy-six thousand, six hundred twenty-one".