33504157 has 2 divisors, whose sum is σ = 33504158. Its totient is φ = 33504156.

The previous prime is 33504131. The next prime is 33504173. The reversal of 33504157 is 75140533.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33108516 + 395641 = 5754^2 + 629^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33504157 is a prime.

It is a super-2 number, since 2×33504157² = 2245057072561298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33504187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16752078 + 16752079.

It is an arithmetic number, because the mean of its divisors is an integer number (16752079).

Almost surely, 2^33504157 is an apocalyptic number.

It is an amenable number.

33504157 is a deficient number, since it is larger than the sum of its proper divisors (1).

33504157 is an equidigital number, since it uses as much as digits as its factorization.

33504157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 33504157 is about 5788.2775503599. The cubic root of 33504157 is about 322.3786198665.

The spelling of 33504157 in words is "thirty-three million, five hundred four thousand, one hundred fifty-seven".