133029457 has 16 divisors (see below), whose sum is σ = 148098240. Its totient is φ = 119470560.

The previous prime is 133029451. The next prime is 133029473. The reversal of 133029457 is 754920331.

It is not a de Polignac number, because 133029457 - 2¹¹ = 133027409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133029451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117898 + ... + 119020.

It is an arithmetic number, because the mean of its divisors is an integer number (9256140).

Almost surely, 2^133029457 is an apocalyptic number.

It is an amenable number.

133029457 is a deficient number, since it is larger than the sum of its proper divisors (15068783).

133029457 is an equidigital number, since it uses as much as digits as its factorization.

133029457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245 (or 1223 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 133029457 is about 11533.8396468826. The cubic root of 133029457 is about 510.4845542141.

Adding to 133029457 its reverse (754920331), we get a palindrome (887949788).

The spelling of 133029457 in words is "one hundred thirty-three million, twenty-nine thousand, four hundred fifty-seven".