133481776 has 20 divisors (see below), whose sum is σ = 259231672. Its totient is φ = 66583296.

The previous prime is 133481771. The next prime is 133481827. The reversal of 133481776 is 677184331.

It is a super-2 number, since 2×133481776² = 35634769048228352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133481771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2706 + ... + 16561.

Almost surely, 2^133481776 is an apocalyptic number.

133481776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

133481776 is a deficient number, since it is larger than the sum of its proper divisors (125749896).

133481776 is a wasteful number, since it uses less digits than its factorization.

133481776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19708 (or 19702 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The square root of 133481776 is about 11553.4313517673. The cubic root of 133481776 is about 511.0624729744.

The spelling of 133481776 in words is "one hundred thirty-three million, four hundred eighty-one thousand, seven hundred seventy-six".