146651005 has 4 divisors (see below), whose sum is σ = 175981212. Its totient is φ = 117320800.

The previous prime is 146651003. The next prime is 146651039. The reversal of 146651005 is 500156641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500156641 = 3217 ⋅155473.

It can be written as a sum of positive squares in 2 ways, for example, as 14791716 + 131859289 = 3846^2 + 11483^2 .

It is not a de Polignac number, because 146651005 - 2¹ = 146651003 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 (146651003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14665096 + ... + 14665105.

It is an arithmetic number, because the mean of its divisors is an integer number (43995303).

Almost surely, 2^146651005 is an apocalyptic number.

It is an amenable number.

146651005 is a deficient number, since it is larger than the sum of its proper divisors (29330207).

146651005 is an equidigital number, since it uses as much as digits as its factorization.

146651005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29330206.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 146651005 is about 12109.9547893458. The cubic root of 146651005 is about 527.3452208680.

The spelling of 146651005 in words is "one hundred forty-six million, six hundred fifty-one thousand, five".