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14542421 is a prime number
BaseRepresentation
bin110111011110…
…011001010101
31000100211110012
4313132121111
512210324141
61235410005
7234415505
oct67363125
930324405
1014542421
118232a33
124a53905
1330222aa
141d07a05
151423ceb
hexdde655

14542421 has 2 divisors, whose sum is σ = 14542422. Its totient is φ = 14542420.

The previous prime is 14542393. The next prime is 14542447. The reversal of 14542421 is 12424541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10817521 + 3724900 = 3289^2 + 1930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14542421 is a prime.

It is a super-2 number, since 2×145424212 = 422964017082482, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14542321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7271210 + 7271211.

It is an arithmetic number, because the mean of its divisors is an integer number (7271211).

Almost surely, 214542421 is an apocalyptic number.

It is an amenable number.

14542421 is a deficient number, since it is larger than the sum of its proper divisors (1).

14542421 is an equidigital number, since it uses as much as digits as its factorization.

14542421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1280, while the sum is 23.

The square root of 14542421 is about 3813.4526350802. The cubic root of 14542421 is about 244.0875178753.

Adding to 14542421 its reverse (12424541), we get a palindrome (26966962).

The spelling of 14542421 in words is "fourteen million, five hundred forty-two thousand, four hundred twenty-one".