146677709 has 4 divisors (see below), whose sum is σ = 151409280. Its totient is φ = 141946140.

The previous prime is 146677691. The next prime is 146677711. The reversal of 146677709 is 907776641.

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: 907776641 = 1033 ⋅878777.

It is a cyclic number.

It is not a de Polignac number, because 146677709 - 2¹² = 146673613 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 (146677759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2365739 + ... + 2365800.

It is an arithmetic number, because the mean of its divisors is an integer number (37852320).

Almost surely, 2^146677709 is an apocalyptic number.

It is an amenable number.

146677709 is a deficient number, since it is larger than the sum of its proper divisors (4731571).

146677709 is an equidigital number, since it uses as much as digits as its factorization.

146677709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4731570.

The product of its (nonzero) digits is 444528, while the sum is 47.

The square root of 146677709 is about 12111.0573031424. The cubic root of 146677709 is about 527.3772274042.

The spelling of 146677709 in words is "one hundred forty-six million, six hundred seventy-seven thousand, seven hundred nine".