1356228987 has 24 divisors (see below), whose sum is σ = 1952938944. Its totient is φ = 836616816.

The previous prime is 1356228953. The next prime is 1356228997. The reversal of 1356228987 is 7898226531.

It is not a de Polignac number, because 1356228987 - 2¹⁰ = 1356227963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1356228947) 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 23 ways as a sum of consecutive naturals, for example, 32008 + ... + 61130.

It is an arithmetic number, because the mean of its divisors is an integer number (81372456).

Almost surely, 2^1356228987 is an apocalyptic number.

1356228987 is a deficient number, since it is larger than the sum of its proper divisors (596709957).

1356228987 is a wasteful number, since it uses less digits than its factorization.

1356228987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29207 (or 29188 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The square root of 1356228987 is about 36827.0143644581. The cubic root of 1356228987 is about 1106.9066777641.

The spelling of 1356228987 in words is "one billion, three hundred fifty-six million, two hundred twenty-eight thousand, nine hundred eighty-seven".