145040160121 has 4 divisors (see below), whose sum is σ = 148577725044. Its totient is φ = 141502595200.

The previous prime is 145040160119. The next prime is 145040160143. The reversal of 145040160121 is 121061040541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 85533436521 + 59506723600 = 292461^2 + 243940^2 .

It is a cyclic number.

It is not a de Polignac number, because 145040160121 - 2¹ = 145040160119 is a prime.

It is a super-3 number, since 3×145040160121³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145040160721) 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 in 3 ways as a sum of consecutive naturals, for example, 1768782400 + ... + 1768782481.

It is an arithmetic number, because the mean of its divisors is an integer number (37144431261).

Almost surely, 2^145040160121 is an apocalyptic number.

It is an amenable number.

145040160121 is a deficient number, since it is larger than the sum of its proper divisors (3537564923).

145040160121 is an equidigital number, since it uses as much as digits as its factorization.

145040160121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3537564922.

The product of its (nonzero) digits is 960, while the sum is 25.

The spelling of 145040160121 in words is "one hundred forty-five billion, forty million, one hundred sixty thousand, one hundred twenty-one".