1061138412 has 36 divisors (see below), whose sum is σ = 2695053816. Its totient is φ = 352033920.

The previous prime is 1061138363. The next prime is 1061138413. The reversal of 1061138412 is 2148311601.

It is a happy number.

1061138412 is a `hidden beast` number, since 1 + 0 + 611 + 3 + 8 + 41 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1061138412² = 2252029458843763488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1061138413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62253 + ... + 77444.

It is an arithmetic number, because the mean of its divisors is an integer number (74862606).

Almost surely, 2^1061138412 is an apocalyptic number.

1061138412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1061138412 is an abundant number, since it is smaller than the sum of its proper divisors (1633915404).

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

1061138412 is a wasteful number, since it uses less digits than its factorization.

1061138412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139918 (or 139913 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1061138412 is about 32575.1195239557. The cubic root of 1061138412 is about 1019.9777042416.

The spelling of 1061138412 in words is "one billion, sixty-one million, one hundred thirty-eight thousand, four hundred twelve".