1361542988 has 24 divisors (see below), whose sum is σ = 2716926912. Its totient is φ = 591439104.

The previous prime is 1361542981. The next prime is 1361542999. The reversal of 1361542988 is 8892451631.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1361542981) 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 7 ways as a sum of consecutive naturals, for example, 769220 + ... + 770987.

It is an arithmetic number, because the mean of its divisors is an integer number (113205288).

Almost surely, 2^1361542988 is an apocalyptic number.

It is an amenable number.

1361542988 is a deficient number, since it is larger than the sum of its proper divisors (1355383924).

1361542988 is a wasteful number, since it uses less digits than its factorization.

1361542988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540241 (or 1540239 counting only the distinct ones).

The product of its digits is 414720, while the sum is 47.

The square root of 1361542988 is about 36899.0919671474. The cubic root of 1361542988 is about 1108.3504942764.

The spelling of 1361542988 in words is "one billion, three hundred sixty-one million, five hundred forty-two thousand, nine hundred eighty-eight".