1050021151 has 4 divisors (see below), whose sum is σ = 1057575400. Its totient is φ = 1042466904.

The previous prime is 1050021143. The next prime is 1050021157. The reversal of 1050021151 is 1511200501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1050021151 - 2³ = 1050021143 is a prime.

It is a super-2 number, since 2×1050021151² = 2205088835094729602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1050021157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3776916 + ... + 3777193.

It is an arithmetic number, because the mean of its divisors is an integer number (264393850).

Almost surely, 2^1050021151 is an apocalyptic number.

1050021151 is a deficient number, since it is larger than the sum of its proper divisors (7554249).

1050021151 is an equidigital number, since it uses as much as digits as its factorization.

1050021151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7554248.

The product of its (nonzero) digits is 50, while the sum is 16.

The square root of 1050021151 is about 32404.0298574113. The cubic root of 1050021151 is about 1016.4031814672.

Adding to 1050021151 its reverse (1511200501), we get a palindrome (2561221652).

The spelling of 1050021151 in words is "one billion, fifty million, twenty-one thousand, one hundred fifty-one".