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125929 is a prime number
BaseRepresentation
bin11110101111101001
320101202001
4132233221
513012204
62411001
71033066
oct365751
9211661
10125929
1186681
1260a61
134541b
1433c6d
15274a4
hex1ebe9

125929 has 2 divisors, whose sum is σ = 125930. Its totient is φ = 125928.

The previous prime is 125927. The next prime is 125933. The reversal of 125929 is 929521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123904 + 2025 = 352^2 + 45^2 .

It is a cyclic number.

It is not a de Polignac number, because 125929 - 21 = 125927 is a prime.

It is a super-2 number, since 2×1259292 = 31716226082, which contains 22 as substring.

Together with 125927, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 125897 and 125906.

It is not a weakly prime, because it can be changed into another prime (125921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62964 + 62965.

It is an arithmetic number, because the mean of its divisors is an integer number (62965).

2125929 is an apocalyptic number.

It is an amenable number.

125929 is a deficient number, since it is larger than the sum of its proper divisors (1).

125929 is an equidigital number, since it uses as much as digits as its factorization.

125929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 28.

The square root of 125929 is about 354.8647629732. The cubic root of 125929 is about 50.1235610684.

The spelling of 125929 in words is "one hundred twenty-five thousand, nine hundred twenty-nine".