2150121587 has 2 divisors, whose sum is σ = 2150121588. Its totient is φ = 2150121586.

The previous prime is 2150121583. The next prime is 2150121593. The reversal of 2150121587 is 7851210512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2150121587 - 2² = 2150121583 is a prime.

It is not a weakly prime, because it can be changed into another prime (2150121583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075060793 + 1075060794.

It is an arithmetic number, because the mean of its divisors is an integer number (1075060794).

Almost surely, 2^2150121587 is an apocalyptic number.

2150121587 is a deficient number, since it is larger than the sum of its proper divisors (1).

2150121587 is an equidigital number, since it uses as much as digits as its factorization.

2150121587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5600, while the sum is 32.

The square root of 2150121587 is about 46369.4035652821. The cubic root of 2150121587 is about 1290.6872101112.

The spelling of 2150121587 in words is "two billion, one hundred fifty million, one hundred twenty-one thousand, five hundred eighty-seven".