33540154 has 4 divisors (see below), whose sum is σ = 50310234. Its totient is φ = 16770076.

The previous prime is 33540139. The next prime is 33540193. The reversal of 33540154 is 45104533.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45104533 = 521 ⋅86573.

It can be written as a sum of positive squares in only one way, i.e., 32182929 + 1357225 = 5673^2 + 1165^2 .

It is a super-2 number, since 2×33540154² = 2249883860687432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8385037 + ... + 8385040.

Almost surely, 2^33540154 is an apocalyptic number.

33540154 is a deficient number, since it is larger than the sum of its proper divisors (16770080).

33540154 is a wasteful number, since it uses less digits than its factorization.

33540154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16770079.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 33540154 is about 5791.3861898513. The cubic root of 33540154 is about 322.4940335014.

Adding to 33540154 its reverse (45104533), we get a palindrome (78644687).

The spelling of 33540154 in words is "thirty-three million, five hundred forty thousand, one hundred fifty-four".