1061513220 has 24 divisors (see below), whose sum is σ = 2972237184. Its totient is φ = 283070176.

The previous prime is 1061513209. The next prime is 1061513231. The reversal of 1061513220 is 223151601.

It is an interprime number because it is at equal distance from previous prime (1061513209) and next prime (1061513231).

It is a super-2 number, since 2×1061513220² = 2253620632469536800, which contains 22 as substring.

It is an unprimeable number.

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, 8845884 + ... + 8846003.

It is an arithmetic number, because the mean of its divisors is an integer number (123843216).

Almost surely, 2^1061513220 is an apocalyptic number.

1061513220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1061513220 is an abundant number, since it is smaller than the sum of its proper divisors (1910723964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1061513220 is a wasteful number, since it uses less digits than its factorization.

1061513220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17691899 (or 17691897 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1061513220 is about 32580.8719956971. The cubic root of 1061513220 is about 1020.0977799381.

Adding to 1061513220 its reverse (223151601), we get a palindrome (1284664821).

The spelling of 1061513220 in words is "one billion, sixty-one million, five hundred thirteen thousand, two hundred twenty".