129087675 has 54 divisors (see below), whose sum is σ = 240395948. Its totient is φ = 68759280.

The previous prime is 129087643. The next prime is 129087713. The reversal of 129087675 is 576780921.

It is not a de Polignac number, because 129087675 - 2⁵ = 129087643 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 129087675.

It is an unprimeable number.

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 53 ways as a sum of consecutive naturals, for example, 163632 + ... + 164418.

Almost surely, 2^129087675 is an apocalyptic number.

129087675 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

129087675 is a deficient number, since it is larger than the sum of its proper divisors (111308273).

129087675 is an frugal number, since it uses more digits than its factorization.

129087675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 795 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The square root of 129087675 is about 11361.6757126755. The cubic root of 129087675 is about 505.3918795959.

The spelling of 129087675 in words is "one hundred twenty-nine million, eighty-seven thousand, six hundred seventy-five".