133986576 has 20 divisors (see below), whose sum is σ = 346132112. Its totient is φ = 44662176.

The previous prime is 133986551. The next prime is 133986599. The reversal of 133986576 is 675689331.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 2791387 = 133986576 / (1 + 3 + 3 + 9 + 8 + 6 + 5 + 7 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1395646 + ... + 1395741.

Almost surely, 2^133986576 is an apocalyptic number.

133986576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

133986576 is an abundant number, since it is smaller than the sum of its proper divisors (212145536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133986576 is a wasteful number, since it uses less digits than its factorization.

133986576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2791398 (or 2791392 counting only the distinct ones).

The product of its digits is 816480, while the sum is 48.

The square root of 133986576 is about 11575.2570597806. The cubic root of 133986576 is about 511.7059061368.

The spelling of 133986576 in words is "one hundred thirty-three million, nine hundred eighty-six thousand, five hundred seventy-six".