1021137315 has 32 divisors (see below), whose sum is σ = 1784146176. Its totient is φ = 494597760.

The previous prime is 1021137307. The next prime is 1021137319. The reversal of 1021137315 is 5137311201.

It is a happy number.

It is not a de Polignac number, because 1021137315 - 2³ = 1021137307 is a prime.

It is a super-4 number, since 4×1021137315⁴ (a number of 37 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1021137319) 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 31 ways as a sum of consecutive naturals, for example, 201604 + ... + 206606.

It is an arithmetic number, because the mean of its divisors is an integer number (55754568).

Almost surely, 2^1021137315 is an apocalyptic number.

1021137315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1021137315 is a deficient number, since it is larger than the sum of its proper divisors (763008861).

1021137315 is a wasteful number, since it uses less digits than its factorization.

1021137315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6259.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 1021137315 is about 31955.2392417894. The cubic root of 1021137315 is about 1006.9967036331.

Adding to 1021137315 its reverse (5137311201), we get a palindrome (6158448516).

The spelling of 1021137315 in words is "one billion, twenty-one million, one hundred thirty-seven thousand, three hundred fifteen".