133925907 has 4 divisors (see below), whose sum is σ = 178567880. Its totient is φ = 89283936.

The previous prime is 133925893. The next prime is 133925933. The reversal of 133925907 is 709529331.

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

It is not a de Polignac number, because 133925907 - 2¹⁸ = 133663763 is a prime.

It is a super-2 number, since 2×133925907² = 35872297131545298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133925947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22320982 + ... + 22320987.

It is an arithmetic number, because the mean of its divisors is an integer number (44641970).

Almost surely, 2^133925907 is an apocalyptic number.

133925907 is a deficient number, since it is larger than the sum of its proper divisors (44641973).

133925907 is an equidigital number, since it uses as much as digits as its factorization.

133925907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44641972.

The product of its (nonzero) digits is 51030, while the sum is 39.

The square root of 133925907 is about 11572.6361301131. The cubic root of 133925907 is about 511.6286611535.

The spelling of 133925907 in words is "one hundred thirty-three million, nine hundred twenty-five thousand, nine hundred seven".