995442121 has 2 divisors, whose sum is σ = 995442122. Its totient is φ = 995442120.

The previous prime is 995442109. The next prime is 995442181. The reversal of 995442121 is 121244599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 861716025 + 133726096 = 29355^2 + 11564^2 .

It is a cyclic number.

It is not a de Polignac number, because 995442121 - 2⁹ = 995441609 is a prime.

It is not a weakly prime, because it can be changed into another prime (995442181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497721060 + 497721061.

It is an arithmetic number, because the mean of its divisors is an integer number (497721061).

Almost surely, 2^995442121 is an apocalyptic number.

It is an amenable number.

995442121 is a deficient number, since it is larger than the sum of its proper divisors (1).

995442121 is an equidigital number, since it uses as much as digits as its factorization.

995442121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 37.

The square root of 995442121 is about 31550.6279018342. The cubic root of 995442121 is about 998.4783928861.

The spelling of 995442121 in words is "nine hundred ninety-five million, four hundred forty-two thousand, one hundred twenty-one".