152021005 has 4 divisors (see below), whose sum is σ = 182425212. Its totient is φ = 121616800.

The previous prime is 152021003. The next prime is 152021017. The reversal of 152021005 is 500120251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500120251 = 383 ⋅1305797.

It can be written as a sum of positive squares in 2 ways, for example, as 84879369 + 67141636 = 9213^2 + 8194^2 .

It is not a de Polignac number, because 152021005 - 2¹ = 152021003 is a prime.

It is a super-2 number, since 2×152021005² = 46220771922420050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 152021005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152021003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15202096 + ... + 15202105.

It is an arithmetic number, because the mean of its divisors is an integer number (45606303).

Almost surely, 2^152021005 is an apocalyptic number.

It is an amenable number.

152021005 is a deficient number, since it is larger than the sum of its proper divisors (30404207).

152021005 is an equidigital number, since it uses as much as digits as its factorization.

152021005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30404206.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 152021005 is about 12329.6798417477. The cubic root of 152021005 is about 533.7049118474.

Adding to 152021005 its reverse (500120251), we get a palindrome (652141256).

The spelling of 152021005 in words is "one hundred fifty-two million, twenty-one thousand, five".