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1025695961 is a prime number
BaseRepresentation
bin111101001000101…
…110000011011001
32122111000202100022
4331020232003121
54100034232321
6245440120225
734263162143
oct7510560331
92574022308
101025695961
11486a84614
12247606075
131346660b4
149a319c93
15600a9dab
hex3d22e0d9

1025695961 has 2 divisors, whose sum is σ = 1025695962. Its totient is φ = 1025695960.

The previous prime is 1025695927. The next prime is 1025695963. The reversal of 1025695961 is 1695965201.

1025695961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 599025625 + 426670336 = 24475^2 + 20656^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1025695961 is a prime.

Together with 1025695963, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1025695963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512847980 + 512847981.

It is an arithmetic number, because the mean of its divisors is an integer number (512847981).

Almost surely, 21025695961 is an apocalyptic number.

It is an amenable number.

1025695961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025695961 is an equidigital number, since it uses as much as digits as its factorization.

1025695961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145800, while the sum is 44.

The square root of 1025695961 is about 32026.4884275501. The cubic root of 1025695961 is about 1008.4929853315.

The spelling of 1025695961 in words is "one billion, twenty-five million, six hundred ninety-five thousand, nine hundred sixty-one".