146031621 has 8 divisors (see below), whose sum is σ = 197901024. Its totient is φ = 95758320.

The previous prime is 146031553. The next prime is 146031631. The reversal of 146031621 is 126130641.

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

It is not a de Polignac number, because 146031621 - 2¹⁰ = 146030597 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 146031591 and 146031600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146031631) 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, 398811 + ... + 399176.

It is an arithmetic number, because the mean of its divisors is an integer number (24737628).

Almost surely, 2^146031621 is an apocalyptic number.

It is an amenable number.

146031621 is a deficient number, since it is larger than the sum of its proper divisors (51869403).

146031621 is an equidigital number, since it uses as much as digits as its factorization.

146031621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798051.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 146031621 is about 12084.3543890437. The cubic root of 146031621 is about 526.6017548495.

The spelling of 146031621 in words is "one hundred forty-six million, thirty-one thousand, six hundred twenty-one".