133625801 has 4 divisors (see below), whose sum is σ = 133990272. Its totient is φ = 133261332.

The previous prime is 133625771. The next prime is 133625809. The reversal of 133625801 is 108526331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 108526331 = 137 ⋅792163.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133625801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133625809) 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, 181685 + ... + 182418.

It is an arithmetic number, because the mean of its divisors is an integer number (33497568).

Almost surely, 2^133625801 is an apocalyptic number.

It is an amenable number.

133625801 is a deficient number, since it is larger than the sum of its proper divisors (364471).

133625801 is an equidigital number, since it uses as much as digits as its factorization.

133625801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364470.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 133625801 is about 11559.6626680885. The cubic root of 133625801 is about 511.2462166972.

The spelling of 133625801 in words is "one hundred thirty-three million, six hundred twenty-five thousand, eight hundred one".