133601507 has 8 divisors (see below), whose sum is σ = 144259584. Its totient is φ = 122997888.

The previous prime is 133601477. The next prime is 133601509. The reversal of 133601507 is 705106331.

It is a happy number.

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

It is not a de Polignac number, because 133601507 - 2⁶ = 133601443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133601509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8438 + ... + 18395.

It is an arithmetic number, because the mean of its divisors is an integer number (18032448).

Almost surely, 2^133601507 is an apocalyptic number.

133601507 is a deficient number, since it is larger than the sum of its proper divisors (10658077).

133601507 is a wasteful number, since it uses less digits than its factorization.

133601507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27229.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 133601507 is about 11558.6118111130. The cubic root of 133601507 is about 511.2152322409.

Adding to 133601507 its reverse (705106331), we get a palindrome (838707838).

The spelling of 133601507 in words is "one hundred thirty-three million, six hundred one thousand, five hundred seven".