146922241 has 4 divisors (see below), whose sum is σ = 146958084. Its totient is φ = 146886400.

The previous prime is 146922239. The next prime is 146922253. The reversal of 146922241 is 142229641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142229641 = 179 ⋅794579.

It can be written as a sum of positive squares in 2 ways, for example, as 78694641 + 68227600 = 8871^2 + 8260^2 .

It is a cyclic number.

It is not a de Polignac number, because 146922241 - 2¹ = 146922239 is a prime.

It is a super-2 number, since 2×146922241² = 43172289800924162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146925241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10840 + ... + 20281.

It is an arithmetic number, because the mean of its divisors is an integer number (36739521).

Almost surely, 2^146922241 is an apocalyptic number.

It is an amenable number.

146922241 is a deficient number, since it is larger than the sum of its proper divisors (35843).

146922241 is an equidigital number, since it uses as much as digits as its factorization.

146922241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35842.

The product of its digits is 6912, while the sum is 31.

The square root of 146922241 is about 12121.1485016891. The cubic root of 146922241 is about 527.6701349184.

The spelling of 146922241 in words is "one hundred forty-six million, nine hundred twenty-two thousand, two hundred forty-one".