133778954 has 4 divisors (see below), whose sum is σ = 200668434. Its totient is φ = 66889476.

The previous prime is 133778951. The next prime is 133778959. The reversal of 133778954 is 459877331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 107019025 + 26759929 = 10345^2 + 5173^2 .

It is a junction number, because it is equal to n+sod(n) for n = 133778899 and 133778908.

It is not an unprimeable number, because it can be changed into a prime (133778951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33444737 + ... + 33444740.

Almost surely, 2^133778954 is an apocalyptic number.

133778954 is a deficient number, since it is larger than the sum of its proper divisors (66889480).

133778954 is an equidigital number, since it uses as much as digits as its factorization.

133778954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66889479.

The product of its digits is 635040, while the sum is 47.

The square root of 133778954 is about 11566.2852290612. The cubic root of 133778954 is about 511.4414609205.

The spelling of 133778954 in words is "one hundred thirty-three million, seven hundred seventy-eight thousand, nine hundred fifty-four".