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1400404127 is a prime number
BaseRepresentation
bin101001101111000…
…0111100010011111
310121121002220022112
41103132013202133
510332000413002
6350543304235
746463144603
oct12336074237
93547086275
101400404127
11659545391
12330bab07b
131941906c5
14d3db9503
1582e24852
hex5378789f

1400404127 has 2 divisors, whose sum is σ = 1400404128. Its totient is φ = 1400404126.

The previous prime is 1400404111. The next prime is 1400404129. The reversal of 1400404127 is 7214040041.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1400404127 - 24 = 1400404111 is a prime.

It is a super-2 number, since 2×14004041272 = 3922263437837264258, which contains 22 as substring.

Together with 1400404129, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400404129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700202063 + 700202064.

It is an arithmetic number, because the mean of its divisors is an integer number (700202064).

Almost surely, 21400404127 is an apocalyptic number.

1400404127 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400404127 is an equidigital number, since it uses as much as digits as its factorization.

1400404127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 1400404127 is about 37421.9738522703. The cubic root of 1400404127 is about 1118.7965727748.

Adding to 1400404127 its reverse (7214040041), we get a palindrome (8614444168).

The spelling of 1400404127 in words is "one billion, four hundred million, four hundred four thousand, one hundred twenty-seven".