133015730 has 16 divisors (see below), whose sum is σ = 247152384. Its totient is φ = 51489840.

The previous prime is 133015691. The next prime is 133015759. The reversal of 133015730 is 37510331.

It is a happy number.

133015730 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 133015696 and 133015705.

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, 214232 + ... + 214851.

It is an arithmetic number, because the mean of its divisors is an integer number (15447024).

Almost surely, 2^133015730 is an apocalyptic number.

133015730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133015730 is a deficient number, since it is larger than the sum of its proper divisors (114136654).

133015730 is a wasteful number, since it uses less digits than its factorization.

133015730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429121.

The product of its (nonzero) digits is 945, while the sum is 23.

The square root of 133015730 is about 11533.2445564984. The cubic root of 133015730 is about 510.4669950392.

The spelling of 133015730 in words is "one hundred thirty-three million, fifteen thousand, seven hundred thirty".