152021305 has 8 divisors (see below), whose sum is σ = 184197312. Its totient is φ = 120435888.

The previous prime is 152021263. The next prime is 152021323. The reversal of 152021305 is 503120251.

152021305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152021305 is a prime.

It is a super-2 number, since 2×152021305² = 46220954347806050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147079 + ... + 148108.

It is an arithmetic number, because the mean of its divisors is an integer number (23024664).

Almost surely, 2^152021305 is an apocalyptic number.

It is an amenable number.

152021305 is a deficient number, since it is larger than the sum of its proper divisors (32176007).

152021305 is a wasteful number, since it uses less digits than its factorization.

152021305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295295.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 152021305 is about 12329.6920075077. The cubic root of 152021305 is about 533.7052629204.

Adding to 152021305 its reverse (503120251), we get a palindrome (655141556).

The spelling of 152021305 in words is "one hundred fifty-two million, twenty-one thousand, three hundred five".