33140997 has 48 divisors (see below), whose sum is σ = 53726400. Its totient is φ = 19595520.

The previous prime is 33140993. The next prime is 33141001. The reversal of 33140997 is 79904133.

It is an interprime number because it is at equal distance from previous prime (33140993) and next prime (33141001).

It is not a de Polignac number, because 33140997 - 2² = 33140993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33140993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 203238 + ... + 203400.

It is an arithmetic number, because the mean of its divisors is an integer number (1119300).

Almost surely, 2^33140997 is an apocalyptic number.

It is an amenable number.

33140997 is a deficient number, since it is larger than the sum of its proper divisors (20585403).

33140997 is a wasteful number, since it uses less digits than its factorization.

33140997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 33140997 is about 5756.8217794196. The cubic root of 33140997 is about 321.2096048568.

It can be divided in two parts, 331 and 40997, that added together give a triangular number (41328 = T₂₈₇).

The spelling of 33140997 in words is "thirty-three million, one hundred forty thousand, nine hundred ninety-seven".