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125752031 is a prime number
BaseRepresentation
bin1110111111011…
…01001011011111
322202121212100122
413133231023133
5224143031111
620251145155
73054605666
oct737551337
9282555318
10125752031
1164a903a9
12361451bb
132008c0b2
14129b5ddd
15b08ecdb
hex77ed2df

125752031 has 2 divisors, whose sum is σ = 125752032. Its totient is φ = 125752030.

The previous prime is 125752019. The next prime is 125752037. The reversal of 125752031 is 130257521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125752031 - 218 = 125489887 is a prime.

It is a super-2 number, since 2×1257520312 = 31627146601249922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125752037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62876015 + 62876016.

It is an arithmetic number, because the mean of its divisors is an integer number (62876016).

Almost surely, 2125752031 is an apocalyptic number.

125752031 is a deficient number, since it is larger than the sum of its proper divisors (1).

125752031 is an equidigital number, since it uses as much as digits as its factorization.

125752031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 125752031 is about 11213.9213034513. The cubic root of 125752031 is about 501.0007038475. Note that the first 3 decimals are identical.

The spelling of 125752031 in words is "one hundred twenty-five million, seven hundred fifty-two thousand, thirty-one".