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125225071 is a prime number
BaseRepresentation
bin1110111011011…
…00100001101111
322201122002111121
413131230201233
5224024200241
620232001411
73050252446
oct735544157
9281562447
10125225071
11647604a4
1235b30267
131cc3629a
14128b9d5d
15aed8ad1
hex776c86f

125225071 has 2 divisors, whose sum is σ = 125225072. Its totient is φ = 125225070.

The previous prime is 125225069. The next prime is 125225099. The reversal of 125225071 is 170522521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125225071 - 21 = 125225069 is a prime.

Together with 125225069, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125228071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62612535 + 62612536.

It is an arithmetic number, because the mean of its divisors is an integer number (62612536).

Almost surely, 2125225071 is an apocalyptic number.

125225071 is a deficient number, since it is larger than the sum of its proper divisors (1).

125225071 is an equidigital number, since it uses as much as digits as its factorization.

125225071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 125225071 is about 11190.4008417929. The cubic root of 125225071 is about 500.2999147330.

Adding to 125225071 its reverse (170522521), we get a palindrome (295747592).

The spelling of 125225071 in words is "one hundred twenty-five million, two hundred twenty-five thousand, seventy-one".