101255251 has 2 divisors, whose sum is σ = 101255252. Its totient is φ = 101255250.

The previous prime is 101255243. The next prime is 101255267. The reversal of 101255251 is 152552101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101255251 - 2³ = 101255243 is a prime.

It is not a weakly prime, because it can be changed into another prime (101255221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50627625 + 50627626.

It is an arithmetic number, because the mean of its divisors is an integer number (50627626).

Almost surely, 2^101255251 is an apocalyptic number.

101255251 is a deficient number, since it is larger than the sum of its proper divisors (1).

101255251 is an equidigital number, since it uses as much as digits as its factorization.

101255251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 101255251 is about 10062.5668196539. The cubic root of 101255251 is about 466.0929330762.

It can be divided in two parts, 10125 and 5251, that added together give a square (15376 = 124²).

The spelling of 101255251 in words is "one hundred one million, two hundred fifty-five thousand, two hundred fifty-one".