133061790 has 32 divisors (see below), whose sum is σ = 321319296. Its totient is φ = 35264160.

The previous prime is 133061767. The next prime is 133061791. The reversal of 133061790 is 97160331.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133061791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8716 + ... + 18495.

It is an arithmetic number, because the mean of its divisors is an integer number (10041228).

Almost surely, 2^133061790 is an apocalyptic number.

133061790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133061790 is an abundant number, since it is smaller than the sum of its proper divisors (188257506).

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

133061790 is a wasteful number, since it uses less digits than its factorization.

133061790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27384.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 133061790 is about 11535.2412198445. The cubic root of 133061790 is about 510.5259088645.

The spelling of 133061790 in words is "one hundred thirty-three million, sixty-one thousand, seven hundred ninety".