1147786641 has 27 divisors (see below), whose sum is σ = 1736668297. Its totient is φ = 730431240.

The previous prime is 1147786597. The next prime is 1147786643. The reversal of 1147786641 is 1466877411.

The square root of 1147786641 is 33879.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1147786641 - 2¹⁷ = 1147655569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1147786643) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2337406 + ... + 2337896.

Almost surely, 2^1147786641 is an apocalyptic number.

1147786641 is the 33879-th square number.

1147786641 is the 16940-th centered octagonal number.

It is an amenable number.

1147786641 is a deficient number, since it is larger than the sum of its proper divisors (588881656).

1147786641 is an frugal number, since it uses more digits than its factorization.

1147786641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034 (or 517 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The cubic root of 1147786641 is about 1047.0169727656.

The spelling of 1147786641 in words is "one billion, one hundred forty-seven million, seven hundred eighty-six thousand, six hundred forty-one".