133013155 has 8 divisors (see below), whose sum is σ = 174126384. Its totient is φ = 96736800.

The previous prime is 133013141. The next prime is 133013171. The reversal of 133013155 is 551310331.

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

It is not a de Polignac number, because 133013155 - 2¹¹ = 133011107 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1209156 + ... + 1209265.

It is an arithmetic number, because the mean of its divisors is an integer number (21765798).

Almost surely, 2^133013155 is an apocalyptic number.

133013155 is a deficient number, since it is larger than the sum of its proper divisors (41113229).

133013155 is a wasteful number, since it uses less digits than its factorization.

133013155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418437.

The product of its (nonzero) digits is 675, while the sum is 22.

The square root of 133013155 is about 11533.1329221509. The cubic root of 133013155 is about 510.4637010403.

Adding to 133013155 its reverse (551310331), we get a palindrome (684323486).

The spelling of 133013155 in words is "one hundred thirty-three million, thirteen thousand, one hundred fifty-five".