145606152121 has 2 divisors, whose sum is σ = 145606152122. Its totient is φ = 145606152120.

The previous prime is 145606152077. The next prime is 145606152127. The reversal of 145606152121 is 121251606541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75179607721 + 70426544400 = 274189^2 + 265380^2 .

It is a cyclic number.

It is not a de Polignac number, because 145606152121 - 2¹⁵ = 145606119353 is a prime.

It is not a weakly prime, because it can be changed into another prime (145606152127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72803076060 + 72803076061.

It is an arithmetic number, because the mean of its divisors is an integer number (72803076061).

Almost surely, 2^145606152121 is an apocalyptic number.

It is an amenable number.

145606152121 is a deficient number, since it is larger than the sum of its proper divisors (1).

145606152121 is an equidigital number, since it uses as much as digits as its factorization.

145606152121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 34.

Adding to 145606152121 its reverse (121251606541), we get a palindrome (266857758662).

The spelling of 145606152121 in words is "one hundred forty-five billion, six hundred six million, one hundred fifty-two thousand, one hundred twenty-one".