101572061 has 2 divisors, whose sum is σ = 101572062. Its totient is φ = 101572060.

The previous prime is 101572057. The next prime is 101572069. The reversal of 101572061 is 160275101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100120036 + 1452025 = 10006^2 + 1205^2 .

It is a cyclic number.

It is not a de Polignac number, because 101572061 - 2² = 101572057 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101572069) 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, 50786030 + 50786031.

It is an arithmetic number, because the mean of its divisors is an integer number (50786031).

Almost surely, 2^101572061 is an apocalyptic number.

It is an amenable number.

101572061 is a deficient number, since it is larger than the sum of its proper divisors (1).

101572061 is an equidigital number, since it uses as much as digits as its factorization.

101572061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 101572061 is about 10078.2965326488. The cubic root of 101572061 is about 466.5785347742.

The spelling of 101572061 in words is "one hundred one million, five hundred seventy-two thousand, sixty-one".