133782457 has 8 divisors (see below), whose sum is σ = 134884800. Its totient is φ = 132684240.

The previous prime is 133782419. The next prime is 133782511. The reversal of 133782457 is 754287331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133782457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133782557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102982 + ... + 104272.

It is an arithmetic number, because the mean of its divisors is an integer number (16860600).

Almost surely, 2^133782457 is an apocalyptic number.

It is an amenable number.

133782457 is a deficient number, since it is larger than the sum of its proper divisors (1102343).

133782457 is a wasteful number, since it uses less digits than its factorization.

133782457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2063.

The product of its digits is 141120, while the sum is 40.

The square root of 133782457 is about 11566.4366595767. The cubic root of 133782457 is about 511.4459249106.

The spelling of 133782457 in words is "one hundred thirty-three million, seven hundred eighty-two thousand, four hundred fifty-seven".