156052021 has 8 divisors (see below), whose sum is σ = 158004000. Its totient is φ = 154112400.

The previous prime is 156052009. The next prime is 156052063. The reversal of 156052021 is 120250651.

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 156052021 - 2¹¹ = 156049973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 156051983 and 156052001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156052081) by changing a digit.

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, 23746 + ... + 29596.

It is an arithmetic number, because the mean of its divisors is an integer number (19750500).

Almost surely, 2^156052021 is an apocalyptic number.

It is an amenable number.

156052021 is a deficient number, since it is larger than the sum of its proper divisors (1951979).

156052021 is a wasteful number, since it uses less digits than its factorization.

156052021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6179.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 156052021 is about 12492.0783298857. The cubic root of 156052021 is about 538.3810921876.

The spelling of 156052021 in words is "one hundred fifty-six million, fifty-two thousand, twenty-one".