146039651 has 4 divisors (see below), whose sum is σ = 146086632. Its totient is φ = 145992672.

The previous prime is 146039623. The next prime is 146039659. The reversal of 146039651 is 156930641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 156930641 = 7 ⋅22418663.

It is a cyclic number.

It is not a de Polignac number, because 146039651 - 2⁶ = 146039587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146039659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18470 + ... + 25163.

It is an arithmetic number, because the mean of its divisors is an integer number (36521658).

Almost surely, 2^146039651 is an apocalyptic number.

146039651 is a deficient number, since it is larger than the sum of its proper divisors (46981).

146039651 is an equidigital number, since it uses as much as digits as its factorization.

146039651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46980.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 146039651 is about 12084.6866322632. The cubic root of 146039651 is about 526.6114069476.

The spelling of 146039651 in words is "one hundred forty-six million, thirty-nine thousand, six hundred fifty-one".