146723621 has 8 divisors (see below), whose sum is σ = 160284288. Its totient is φ = 133200000.

The previous prime is 146723597. The next prime is 146723623. The reversal of 146723621 is 126327641.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146723621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146723623) 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, 620 + ... + 17141.

It is an arithmetic number, because the mean of its divisors is an integer number (20035536).

Almost surely, 2^146723621 is an apocalyptic number.

146723621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

146723621 is a deficient number, since it is larger than the sum of its proper divisors (13560667).

146723621 is a wasteful number, since it uses less digits than its factorization.

146723621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18523.

The product of its digits is 12096, while the sum is 32.

The square root of 146723621 is about 12112.9526128025. The cubic root of 146723621 is about 527.4322469377.

The spelling of 146723621 in words is "one hundred forty-six million, seven hundred twenty-three thousand, six hundred twenty-one".