145401326161 has 16 divisors (see below), whose sum is σ = 179496166528. Its totient is φ = 114695222400.

The previous prime is 145401326159. The next prime is 145401326167. The reversal of 145401326161 is 161623104541.

It is a cyclic number.

It is not a de Polignac number, because 145401326161 - 2¹ = 145401326159 is a prime.

It is a super-2 number, since 2×145401326161² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145401326167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2383500 + ... + 2443741.

It is an arithmetic number, because the mean of its divisors is an integer number (11218510408).

Almost surely, 2^145401326161 is an apocalyptic number.

It is an amenable number.

145401326161 is a deficient number, since it is larger than the sum of its proper divisors (34094840367).

145401326161 is a wasteful number, since it uses less digits than its factorization.

145401326161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4827592.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 145401326161 in words is "one hundred forty-five billion, four hundred one million, three hundred twenty-six thousand, one hundred sixty-one".