1051781732 has 6 divisors (see below), whose sum is σ = 1840618038. Its totient is φ = 525890864.

The previous prime is 1051781729. The next prime is 1051781749. The reversal of 1051781732 is 2371871501.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 552438016 + 499343716 = 23504^2 + 22346^2 .

It is a super-2 number, since 2×1051781732² = 2212489623537839648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1051781692 and 1051781701.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131472713 + ... + 131472720.

It is an arithmetic number, because the mean of its divisors is an integer number (306769673).

Almost surely, 2^1051781732 is an apocalyptic number.

It is an amenable number.

1051781732 is a deficient number, since it is larger than the sum of its proper divisors (788836306).

1051781732 is a wasteful number, since it uses less digits than its factorization.

1051781732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262945437 (or 262945435 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 35.

The square root of 1051781732 is about 32431.1845605430. The cubic root of 1051781732 is about 1016.9709354035.

The spelling of 1051781732 in words is "one billion, fifty-one million, seven hundred eighty-one thousand, seven hundred thirty-two".