33992145 has 48 divisors (see below), whose sum is σ = 65812032. Its totient is φ = 16087680.

The previous prime is 33992141. The next prime is 33992171. The reversal of 33992145 is 54129933.

It is a happy number.

It is not a de Polignac number, because 33992145 - 2² = 33992141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (33992141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20487 + ... + 22083.

It is an arithmetic number, because the mean of its divisors is an integer number (1371084).

Almost surely, 2^33992145 is an apocalyptic number.

It is an amenable number.

33992145 is a deficient number, since it is larger than the sum of its proper divisors (31819887).

33992145 is a wasteful number, since it uses less digits than its factorization.

33992145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662 (or 1659 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 33992145 is about 5830.2782952446. The cubic root of 33992145 is about 323.9362300193.

The spelling of 33992145 in words is "thirty-three million, nine hundred ninety-two thousand, one hundred forty-five".