133736740 has 24 divisors (see below), whose sum is σ = 284006520. Its totient is φ = 52892928.

The previous prime is 133736731. The next prime is 133736741. The reversal of 133736740 is 47637331.

It can be written as a sum of positive squares in 4 ways, for example, as 13264164 + 120472576 = 3642^2 + 10976^2 .

It is a junction number, because it is equal to n+sod(n) for n = 133736696 and 133736705.

It is not an unprimeable number, because it can be changed into a prime (133736741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35787 + ... + 39346.

It is an arithmetic number, because the mean of its divisors is an integer number (11833605).

Almost surely, 2^133736740 is an apocalyptic number.

133736740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133736740 is an abundant number, since it is smaller than the sum of its proper divisors (150269780).

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

133736740 is a wasteful number, since it uses less digits than its factorization.

133736740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75231 (or 75229 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 34.

The square root of 133736740 is about 11564.4602122192. The cubic root of 133736740 is about 511.3876600784.

The spelling of 133736740 in words is "one hundred thirty-three million, seven hundred thirty-six thousand, seven hundred forty".