133603061 has 4 divisors (see below), whose sum is σ = 133708800. Its totient is φ = 133497324.

The previous prime is 133603049. The next prime is 133603097. The reversal of 133603061 is 160306331.

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: 160306331 = 47 ⋅3410773.

It is a cyclic number.

It is not a de Polignac number, because 133603061 - 2¹⁰ = 133602037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133603661) 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, 50951 + ... + 53508.

It is an arithmetic number, because the mean of its divisors is an integer number (33427200).

Almost surely, 2^133603061 is an apocalyptic number.

It is an amenable number.

133603061 is a deficient number, since it is larger than the sum of its proper divisors (105739).

133603061 is a wasteful number, since it uses less digits than its factorization.

133603061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105738.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 133603061 is about 11558.6790335228. The cubic root of 133603061 is about 511.2172143178.

Adding to 133603061 its reverse (160306331), we get a palindrome (293909392).

The spelling of 133603061 in words is "one hundred thirty-three million, six hundred three thousand, sixty-one".