133777776 has 40 divisors (see below), whose sum is σ = 377011584. Its totient is φ = 40538560.

The previous prime is 133777759. The next prime is 133777789. The reversal of 133777776 is 677777331.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126156 + ... + 127211.

Almost surely, 2^133777776 is an apocalyptic number.

133777776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

133777776 is an abundant number, since it is smaller than the sum of its proper divisors (243233808).

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

133777776 is a wasteful number, since it uses less digits than its factorization.

133777776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253389 (or 253383 counting only the distinct ones).

The product of its digits is 907578, while the sum is 48.

The square root of 133777776 is about 11566.2343050796. The cubic root of 133777776 is about 511.4399597381.

The spelling of 133777776 in words is "one hundred thirty-three million, seven hundred seventy-seven thousand, seven hundred seventy-six".