152127121 has 2 divisors, whose sum is σ = 152127122. Its totient is φ = 152127120.

The previous prime is 152127113. The next prime is 152127139. The reversal of 152127121 is 121721251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149450625 + 2676496 = 12225^2 + 1636^2 .

It is a cyclic number.

It is not a de Polignac number, because 152127121 - 2³ = 152127113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 152127092 and 152127101.

It is not a weakly prime, because it can be changed into another prime (152127181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76063560 + 76063561.

It is an arithmetic number, because the mean of its divisors is an integer number (76063561).

Almost surely, 2^152127121 is an apocalyptic number.

It is an amenable number.

152127121 is a deficient number, since it is larger than the sum of its proper divisors (1).

152127121 is an equidigital number, since it uses as much as digits as its factorization.

152127121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 280, while the sum is 22.

The square root of 152127121 is about 12333.9823658055. The cubic root of 152127121 is about 533.8290645545.

Adding to 152127121 its reverse (121721251), we get a palindrome (273848372).

The spelling of 152127121 in words is "one hundred fifty-two million, one hundred twenty-seven thousand, one hundred twenty-one".