146222565 has 32 divisors (see below), whose sum is σ = 237638016. Its totient is φ = 76769280.

The previous prime is 146222543. The next prime is 146222581. The reversal of 146222565 is 565222641.

It is not a de Polignac number, because 146222565 - 2⁶ = 146222501 is a prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 476142 + ... + 476448.

It is an arithmetic number, because the mean of its divisors is an integer number (7426188).

Almost surely, 2^146222565 is an apocalyptic number.

146222565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

146222565 is a deficient number, since it is larger than the sum of its proper divisors (91415451).

146222565 is a wasteful number, since it uses less digits than its factorization.

146222565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709.

The product of its digits is 28800, while the sum is 33.

The square root of 146222565 is about 12092.2522715994. The cubic root of 146222565 is about 526.8311746861.

The spelling of 146222565 in words is "one hundred forty-six million, two hundred twenty-two thousand, five hundred sixty-five".