133634730 has 32 divisors (see below), whose sum is σ = 326778624. Its totient is φ = 34963136.

The previous prime is 133634723. The next prime is 133634747. The reversal of 133634730 is 37436331.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 40434 + ... + 43613.

It is an arithmetic number, because the mean of its divisors is an integer number (10211832).

Almost surely, 2^133634730 is an apocalyptic number.

133634730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133634730 is an abundant number, since it is smaller than the sum of its proper divisors (193143894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133634730 is a wasteful number, since it uses less digits than its factorization.

133634730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84110.

The product of its (nonzero) digits is 13608, while the sum is 30.

The square root of 133634730 is about 11560.0488753292. The cubic root of 133634730 is about 511.2576037590.

The spelling of 133634730 in words is "one hundred thirty-three million, six hundred thirty-four thousand, seven hundred thirty".