145125155081 has 2 divisors, whose sum is σ = 145125155082. Its totient is φ = 145125155080.

The previous prime is 145125155029. The next prime is 145125155129. The reversal of 145125155081 is 180551521541.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141229398025 + 3895757056 = 375805^2 + 62416^2 .

It is a cyclic number.

It is not a de Polignac number, because 145125155081 - 2⁶ = 145125155017 is a prime.

It is a super-2 number, since 2×145125155081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145125115081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72562577540 + 72562577541.

It is an arithmetic number, because the mean of its divisors is an integer number (72562577541).

Almost surely, 2^145125155081 is an apocalyptic number.

It is an amenable number.

145125155081 is a deficient number, since it is larger than the sum of its proper divisors (1).

145125155081 is an equidigital number, since it uses as much as digits as its factorization.

145125155081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40000, while the sum is 38.

The spelling of 145125155081 in words is "one hundred forty-five billion, one hundred twenty-five million, one hundred fifty-five thousand, eighty-one".