145764815 has 8 divisors (see below), whose sum is σ = 199906080. Its totient is φ = 99952992.

The previous prime is 145764803. The next prime is 145764833. The reversal of 145764815 is 518467541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145764815 - 2¹⁸ = 145502671 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2082320 + ... + 2082389.

It is an arithmetic number, because the mean of its divisors is an integer number (24988260).

Almost surely, 2^145764815 is an apocalyptic number.

145764815 is a deficient number, since it is larger than the sum of its proper divisors (54141265).

145764815 is an equidigital number, since it uses as much as digits as its factorization.

145764815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4164721.

The product of its digits is 134400, while the sum is 41.

The square root of 145764815 is about 12073.3100266663. The cubic root of 145764815 is about 526.2808513799.

It can be divided in two parts, 14576 and 4815, that added together give a palindrome (19391).

The spelling of 145764815 in words is "one hundred forty-five million, seven hundred sixty-four thousand, eight hundred fifteen".