146521765 has 16 divisors (see below), whose sum is σ = 189778176. Its totient is φ = 107956800.

The previous prime is 146521729. The next prime is 146521783. The reversal of 146521765 is 567125641.

It is a happy number.

It is not a de Polignac number, because 146521765 - 2¹¹ = 146519717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 29620 + ... + 34210.

It is an arithmetic number, because the mean of its divisors is an integer number (11861136).

Almost surely, 2^146521765 is an apocalyptic number.

It is an amenable number.

146521765 is a deficient number, since it is larger than the sum of its proper divisors (43256411).

146521765 is a wasteful number, since it uses less digits than its factorization.

146521765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5100.

The product of its digits is 50400, while the sum is 37.

The square root of 146521765 is about 12104.6175073812. The cubic root of 146521765 is about 527.1902631232.

The spelling of 146521765 in words is "one hundred forty-six million, five hundred twenty-one thousand, seven hundred sixty-five".