33157906 has 8 divisors (see below), whose sum is σ = 49825980. Its totient is φ = 16549248.

The previous prime is 33157897. The next prime is 33157921. The reversal of 33157906 is 60975133.

It can be written as a sum of positive squares in 2 ways, for example, as 33005025 + 152881 = 5745^2 + 391^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13431 + ... + 15706.

Almost surely, 2^33157906 is an apocalyptic number.

33157906 is a deficient number, since it is larger than the sum of its proper divisors (16668074).

33157906 is a wasteful number, since it uses less digits than its factorization.

33157906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29708.

The product of its (nonzero) digits is 17010, while the sum is 34.

The square root of 33157906 is about 5758.2901976194. The cubic root of 33157906 is about 321.2642241124.

The spelling of 33157906 in words is "thirty-three million, one hundred fifty-seven thousand, nine hundred six".