133661130 has 16 divisors (see below), whose sum is σ = 320786784. Its totient is φ = 35642960.

The previous prime is 133661113. The next prime is 133661147. The reversal of 133661130 is 31166331.

It is an interprime number because it is at equal distance from previous prime (133661113) and next prime (133661147).

It is a self number, because there is not a number n which added to its sum of digits gives 133661130.

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, 2227656 + ... + 2227715.

It is an arithmetic number, because the mean of its divisors is an integer number (20049174).

Almost surely, 2^133661130 is an apocalyptic number.

133661130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133661130 is an abundant number, since it is smaller than the sum of its proper divisors (187125654).

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

133661130 is a wasteful number, since it uses less digits than its factorization.

133661130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4455381.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 133661130 is about 11561.1906826243. The cubic root of 133661130 is about 511.2912684409.

The spelling of 133661130 in words is "one hundred thirty-three million, six hundred sixty-one thousand, one hundred thirty".