1051023215 has 32 divisors (see below), whose sum is σ = 1459586304. Its totient is φ = 718051840.

The previous prime is 1051023139. The next prime is 1051023217. The reversal of 1051023215 is 5123201501.

It is a happy number.

It is not a de Polignac number, because 1051023215 - 2¹⁶ = 1050957679 is a prime.

It is a super-2 number, since 2×1051023215² = 2209299596937872450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051023217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 884852 + ... + 886038.

It is an arithmetic number, because the mean of its divisors is an integer number (45612072).

Almost surely, 2^1051023215 is an apocalyptic number.

1051023215 is a deficient number, since it is larger than the sum of its proper divisors (408563089).

1051023215 is a wasteful number, since it uses less digits than its factorization.

1051023215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2167.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1051023215 is about 32419.4881976875. The cubic root of 1051023215 is about 1016.7264058181.

Adding to 1051023215 its reverse (5123201501), we get a palindrome (6174224716).

The spelling of 1051023215 in words is "one billion, fifty-one million, twenty-three thousand, two hundred fifteen".