2151442201 has 8 divisors (see below), whose sum is σ = 2166268104. Its totient is φ = 2136648960.

The previous prime is 2151442199. The next prime is 2151442211. The reversal of 2151442201 is 1022441512.

It can be written as a sum of positive squares in 4 ways, for example, as 63043600 + 2088398601 = 7940^2 + 45699^2 .

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 2151442201 - 2¹ = 2151442199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2151442211) 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, 132225 + ... + 147601.

It is an arithmetic number, because the mean of its divisors is an integer number (270783513).

Almost surely, 2^2151442201 is an apocalyptic number.

It is an amenable number.

2151442201 is a deficient number, since it is larger than the sum of its proper divisors (14825903).

2151442201 is a wasteful number, since it uses less digits than its factorization.

2151442201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16331.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 2151442201 is about 46383.6415237096. The cubic root of 2151442201 is about 1290.9514045887.

Adding to 2151442201 its reverse (1022441512), we get a palindrome (3173883713).

The spelling of 2151442201 in words is "two billion, one hundred fifty-one million, four hundred forty-two thousand, two hundred one".