21034054 has 8 divisors (see below), whose sum is σ = 31630968. Its totient is φ = 10490400.

The previous prime is 21034043. The next prime is 21034061. The reversal of 21034054 is 45043012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12312 + ... + 13915.

It is an arithmetic number, because the mean of its divisors is an integer number (3953871).

Almost surely, 2^21034054 is an apocalyptic number.

21034054 is a deficient number, since it is larger than the sum of its proper divisors (10596914).

21034054 is a wasteful number, since it uses less digits than its factorization.

21034054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26630.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 21034054 is about 4586.2897858727. The cubic root of 21034054 is about 276.0414678994.

Adding to 21034054 its reverse (45043012), we get a palindrome (66077066).

The spelling of 21034054 in words is "twenty-one million, thirty-four thousand, fifty-four".