133177930 has 8 divisors (see below), whose sum is σ = 239720292. Its totient is φ = 53271168.

The previous prime is 133177921. The next prime is 133177937. The reversal of 133177930 is 39771331.

It is a happy number.

133177930 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 122478489 + 10699441 = 11067^2 + 3271^2 .

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

It is a super-2 number, since 2×133177930² = 35472722078169800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133177937) 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, 6658887 + ... + 6658906.

Almost surely, 2^133177930 is an apocalyptic number.

133177930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133177930 is a deficient number, since it is larger than the sum of its proper divisors (106542362).

133177930 is a wasteful number, since it uses less digits than its factorization.

133177930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13317800.

The product of its (nonzero) digits is 11907, while the sum is 34.

The square root of 133177930 is about 11540.2742601725. The cubic root of 133177930 is about 510.6743993683.

The spelling of 133177930 in words is "one hundred thirty-three million, one hundred seventy-seven thousand, nine hundred thirty".