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16842961 is a prime number
BaseRepresentation
bin100000001000…
…0000011010001
31011200201012101
41000100003101
513302433321
61401000401
7263106562
oct100200321
934621171
1016842961
119564403
125783101
133649465
142346169
15172a791
hex10100d1

16842961 has 2 divisors, whose sum is σ = 16842962. Its totient is φ = 16842960.

The previous prime is 16842901. The next prime is 16843019. The reversal of 16842961 is 16924861.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10497600 + 6345361 = 3240^2 + 2519^2 .

It is a cyclic number.

It is not a de Polignac number, because 16842961 - 211 = 16840913 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16842961.

It is not a weakly prime, because it can be changed into another prime (16842901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8421480 + 8421481.

It is an arithmetic number, because the mean of its divisors is an integer number (8421481).

Almost surely, 216842961 is an apocalyptic number.

It is an amenable number.

16842961 is a deficient number, since it is larger than the sum of its proper divisors (1).

16842961 is an equidigital number, since it uses as much as digits as its factorization.

16842961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 16842961 is about 4104.0176656540. The cubic root of 16842961 is about 256.3339605103. Note that the first 3 decimals are identical.

It can be divided in two parts, 168429 and 61, that added together give a triangular number (168490 = T580).

The spelling of 16842961 in words is "sixteen million, eight hundred forty-two thousand, nine hundred sixty-one".