133699902 has 16 divisors (see below), whose sum is σ = 305599872. Its totient is φ = 38199960.

The previous prime is 133699901. The next prime is 133699921. The reversal of 133699902 is 209996331.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 3183331 = 133699902 / (1 + 3 + 3 + 6 + 9 + 9 + 9 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133699901) 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, 1591624 + ... + 1591707.

It is an arithmetic number, because the mean of its divisors is an integer number (19099992).

Almost surely, 2^133699902 is an apocalyptic number.

133699902 is an abundant number, since it is smaller than the sum of its proper divisors (171899970).

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

133699902 is a wasteful number, since it uses less digits than its factorization.

133699902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3183343.

The product of its (nonzero) digits is 78732, while the sum is 42.

The square root of 133699902 is about 11562.8673779474. The cubic root of 133699902 is about 511.3407015822.

The spelling of 133699902 in words is "one hundred thirty-three million, six hundred ninety-nine thousand, nine hundred two".