21314954 has 4 divisors (see below), whose sum is σ = 31972434. Its totient is φ = 10657476.

The previous prime is 21314947. The next prime is 21314999. The reversal of 21314954 is 45941312.

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

It can be written as a sum of positive squares in only one way, i.e., 20948929 + 366025 = 4577^2 + 605^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5328737 + ... + 5328740.

Almost surely, 2^21314954 is an apocalyptic number.

21314954 is a deficient number, since it is larger than the sum of its proper divisors (10657480).

21314954 is a wasteful number, since it uses less digits than its factorization.

21314954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10657479.

The product of its digits is 4320, while the sum is 29.

The square root of 21314954 is about 4616.8121036057. The cubic root of 21314954 is about 277.2648398691.

The spelling of 21314954 in words is "twenty-one million, three hundred fourteen thousand, nine hundred fifty-four".