33145454 has 4 divisors (see below), whose sum is σ = 49718184. Its totient is φ = 16572726.

The previous prime is 33145429. The next prime is 33145471. The reversal of 33145454 is 45454133.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×33145454² = 2197242241732232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8286362 + ... + 8286365.

It is an arithmetic number, because the mean of its divisors is an integer number (12429546).

Almost surely, 2^33145454 is an apocalyptic number.

33145454 is a deficient number, since it is larger than the sum of its proper divisors (16572730).

33145454 is a wasteful number, since it uses less digits than its factorization.

33145454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16572729.

The product of its digits is 14400, while the sum is 29.

The square root of 33145454 is about 5757.2088723617. The cubic root of 33145454 is about 321.2240036093.

Adding to 33145454 its reverse (45454133), we get a palindrome (78599587).

The spelling of 33145454 in words is "thirty-three million, one hundred forty-five thousand, four hundred fifty-four".