1143201536 has 18 divisors (see below), whose sum is σ = 2281937952. Its totient is φ = 571600640.

The previous prime is 1143201509. The next prime is 1143201541. The reversal of 1143201536 is 6351023411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2232560 + ... + 2233071.

Almost surely, 2^1143201536 is an apocalyptic number.

1143201536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1143201536 is a deficient number, since it is larger than the sum of its proper divisors (1138736416).

1143201536 is an frugal number, since it uses more digits than its factorization.

1143201536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4465647 (or 4465633 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1143201536 is about 33811.2634487385. The cubic root of 1143201536 is about 1045.6209265850.

Adding to 1143201536 its reverse (6351023411), we get a palindrome (7494224947).

The spelling of 1143201536 in words is "one billion, one hundred forty-three million, two hundred one thousand, five hundred thirty-six".