133896490 has 32 divisors (see below), whose sum is σ = 296634240. Its totient is φ = 42375744.

The previous prime is 133896487. The next prime is 133896517. The reversal of 133896490 is 94698331.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72660 + ... + 74479.

It is an arithmetic number, because the mean of its divisors is an integer number (9269820).

Almost surely, 2^133896490 is an apocalyptic number.

133896490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133896490 is an abundant number, since it is smaller than the sum of its proper divisors (162737750).

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

133896490 is a wasteful number, since it uses less digits than its factorization.

133896490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147166.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 133896490 is about 11571.3650880093. The cubic root of 133896490 is about 511.5911984431.

The spelling of 133896490 in words is "one hundred thirty-three million, eight hundred ninety-six thousand, four hundred ninety".