101250161 has 2 divisors, whose sum is σ = 101250162. Its totient is φ = 101250160.

The previous prime is 101250143. The next prime is 101250257. The reversal of 101250161 is 161052101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59969536 + 41280625 = 7744^2 + 6425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101250161 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (101250101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50625080 + 50625081.

It is an arithmetic number, because the mean of its divisors is an integer number (50625081).

Almost surely, 2^101250161 is an apocalyptic number.

It is an amenable number.

101250161 is a deficient number, since it is larger than the sum of its proper divisors (1).

101250161 is an equidigital number, since it uses as much as digits as its factorization.

101250161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 101250161 is about 10062.3138989002. The cubic root of 101250161 is about 466.0851229371.

The spelling of 101250161 in words is "one hundred one million, two hundred fifty thousand, one hundred sixty-one".