133486057 has 8 divisors (see below), whose sum is σ = 141892776. Its totient is φ = 125140992.

The previous prime is 133486033. The next prime is 133486069. The reversal of 133486057 is 750684331.

It can be written as a sum of positive squares in 4 ways, for example, as 55711296 + 77774761 = 7464^2 + 8819^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 133486057 - 2¹⁹ = 132961769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133486007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10908 + ... + 19645.

It is an arithmetic number, because the mean of its divisors is an integer number (17736597).

Almost surely, 2^133486057 is an apocalyptic number.

133486057 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

133486057 is a deficient number, since it is larger than the sum of its proper divisors (8406719).

133486057 is a wasteful number, since it uses less digits than its factorization.

133486057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30827.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 133486057 is about 11553.6166199160. The cubic root of 133486057 is about 511.0679364794.

The spelling of 133486057 in words is "one hundred thirty-three million, four hundred eighty-six thousand, fifty-seven".