133260985 has 16 divisors (see below), whose sum is σ = 187871040. Its totient is φ = 89461440.

The previous prime is 133260979. The next prime is 133260991. The reversal of 133260985 is 589062331.

It is an interprime number because it is at equal distance from previous prime (133260979) and next prime (133260991).

It is not a de Polignac number, because 133260985 - 2¹³ = 133252793 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 92475 + ... + 93904.

It is an arithmetic number, because the mean of its divisors is an integer number (11741940).

Almost surely, 2^133260985 is an apocalyptic number.

It is an amenable number.

133260985 is a deficient number, since it is larger than the sum of its proper divisors (54610055).

133260985 is a wasteful number, since it uses less digits than its factorization.

133260985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186408.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 133260985 is about 11543.8721839771. The cubic root of 133260985 is about 510.7805361941.

The spelling of 133260985 in words is "one hundred thirty-three million, two hundred sixty thousand, nine hundred eighty-five".