1351105987 has 32 divisors (see below), whose sum is σ = 1727230464. Its totient is φ = 1026432000.

The previous prime is 1351105981. The next prime is 1351106011. The reversal of 1351105987 is 7895011531.

It is not a de Polignac number, because 1351105987 - 2²³ = 1342717379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1351105981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 519763 + ... + 522355.

It is an arithmetic number, because the mean of its divisors is an integer number (53975952).

Almost surely, 2^1351105987 is an apocalyptic number.

1351105987 is a deficient number, since it is larger than the sum of its proper divisors (376124477).

1351105987 is a wasteful number, since it uses less digits than its factorization.

1351105987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2779.

The product of its (nonzero) digits is 37800, while the sum is 40.

The square root of 1351105987 is about 36757.3936371990. The cubic root of 1351105987 is about 1105.5111813533.

The spelling of 1351105987 in words is "one billion, three hundred fifty-one million, one hundred five thousand, nine hundred eighty-seven".