133770738 has 32 divisors (see below), whose sum is σ = 271658880. Its totient is φ = 43908480.

The previous prime is 133770727. The next prime is 133770757. The reversal of 133770738 is 837077331.

It is a happy number.

It is a super-2 number, since 2×133770738² = 35789220690129288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133770696 and 133770705.

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, 211683 + ... + 212313.

It is an arithmetic number, because the mean of its divisors is an integer number (8489340).

Almost surely, 2^133770738 is an apocalyptic number.

133770738 is an abundant number, since it is smaller than the sum of its proper divisors (137888142).

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

133770738 is a wasteful number, since it uses less digits than its factorization.

133770738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122.

The product of its (nonzero) digits is 74088, while the sum is 39.

The square root of 133770738 is about 11565.9300533939. The cubic root of 133770738 is about 511.4309906909.

The spelling of 133770738 in words is "one hundred thirty-three million, seven hundred seventy thousand, seven hundred thirty-eight".