2152002405 has 64 divisors (see below), whose sum is σ = 4010065920. Its totient is φ = 965177856.

The previous prime is 2152002389. The next prime is 2152002431. The reversal of 2152002405 is 5042002512.

It is a happy number.

It is not a de Polignac number, because 2152002405 - 2⁴ = 2152002389 is a prime.

It is a super-2 number, since 2×2152002405² = 9262228702251568050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 63 ways as a sum of consecutive naturals, for example, 1708666 + ... + 1709924.

It is an arithmetic number, because the mean of its divisors is an integer number (62657280).

Almost surely, 2^2152002405 is an apocalyptic number.

It is an amenable number.

2152002405 is a deficient number, since it is larger than the sum of its proper divisors (1858063515).

2152002405 is a wasteful number, since it uses less digits than its factorization.

2152002405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 2152002405 is about 46389.6799406937. The cubic root of 2152002405 is about 1291.0634431365.

Adding to 2152002405 its reverse (5042002512), we get a palindrome (7194004917).

The spelling of 2152002405 in words is "two billion, one hundred fifty-two million, two thousand, four hundred five".