1061387650 has 12 divisors (see below), whose sum is σ = 1974181122. Its totient is φ = 424555040.

The previous prime is 1061387611. The next prime is 1061387659. The reversal of 1061387650 is 567831601.

It can be written as a sum of positive squares in 3 ways, for example, as 943165521 + 118222129 = 30711^2 + 10873^2 .

It is a super-2 number, since 2×1061387650² = 2253087487145045000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1061387659) 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 5 ways as a sum of consecutive naturals, for example, 10613827 + ... + 10613926.

Almost surely, 2^1061387650 is an apocalyptic number.

1061387650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1061387650 is a deficient number, since it is larger than the sum of its proper divisors (912793472).

1061387650 is a wasteful number, since it uses less digits than its factorization.

1061387650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21227765 (or 21227760 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 1061387650 is about 32578.9448877646. The cubic root of 1061387650 is about 1020.0575547429.

The spelling of 1061387650 in words is "one billion, sixty-one million, three hundred eighty-seven thousand, six hundred fifty".