133779950 has 48 divisors (see below), whose sum is σ = 266969520. Its totient is φ = 49720320.

The previous prime is 133779949. The next prime is 133779967. The reversal of 133779950 is 59977331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49022 + ... + 51678.

It is an arithmetic number, because the mean of its divisors is an integer number (5561865).

Almost surely, 2^133779950 is an apocalyptic number.

133779950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133779950 is a deficient number, since it is larger than the sum of its proper divisors (133189570).

133779950 is a wasteful number, since it uses less digits than its factorization.

133779950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741 (or 2736 counting only the distinct ones).

The product of its (nonzero) digits is 178605, while the sum is 44.

The square root of 133779950 is about 11566.3282851560. The cubic root of 133779950 is about 511.4427301646.

The spelling of 133779950 in words is "one hundred thirty-three million, seven hundred seventy-nine thousand, nine hundred fifty".