146320737 has 4 divisors (see below), whose sum is σ = 195094320. Its totient is φ = 97547156.

The previous prime is 146320721. The next prime is 146320739. The reversal of 146320737 is 737023641.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 737023641 = 3 ⋅245674547.

It is a cyclic number.

It is not a de Polignac number, because 146320737 - 2⁴ = 146320721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 146320698 and 146320707.

It is not an unprimeable number, because it can be changed into a prime (146320739) 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, 24386787 + ... + 24386792.

It is an arithmetic number, because the mean of its divisors is an integer number (48773580).

Almost surely, 2^146320737 is an apocalyptic number.

It is an amenable number.

146320737 is a deficient number, since it is larger than the sum of its proper divisors (48773583).

146320737 is an equidigital number, since it uses as much as digits as its factorization.

146320737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48773582.

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 146320737 is about 12096.3108839018. The cubic root of 146320737 is about 526.9490509287.

The spelling of 146320737 in words is "one hundred forty-six million, three hundred twenty thousand, seven hundred thirty-seven".