133402050 has 72 divisors (see below), whose sum is σ = 359725860. Its totient is φ = 35443200.

The previous prime is 133402019. The next prime is 133402079. The reversal of 133402050 is 50204331.

It can be written as a sum of positive squares in 6 ways, for example, as 15657849 + 117744201 = 3957^2 + 10851^2 .

It is a super-2 number, since 2×133402050² = 35592213888405000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 234166 + ... + 234734.

Almost surely, 2^133402050 is an apocalyptic number.

133402050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 133402050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179862930).

133402050 is an abundant number, since it is smaller than the sum of its proper divisors (226323810).

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

133402050 is a wasteful number, since it uses less digits than its factorization.

133402050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108 (or 1100 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 133402050 is about 11549.9805194641. The cubic root of 133402050 is about 510.9607035727.

Adding to 133402050 its reverse (50204331), we get a palindrome (183606381).

The spelling of 133402050 in words is "one hundred thirty-three million, four hundred two thousand, fifty".