145121440326 has 16 divisors (see below), whose sum is σ = 290405685504. Its totient is φ = 48346679304.

The previous prime is 145121440307. The next prime is 145121440327. The reversal of 145121440326 is 623044121541.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145121440327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6771946 + ... + 6793341.

It is an arithmetic number, because the mean of its divisors is an integer number (18150355344).

Almost surely, 2^145121440326 is an apocalyptic number.

145121440326 is an abundant number, since it is smaller than the sum of its proper divisors (145284245178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145121440326 is a wasteful number, since it uses less digits than its factorization.

145121440326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13567075.

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 145121440326 its reverse (623044121541), we get a palindrome (768165561867).

The spelling of 145121440326 in words is "one hundred forty-five billion, one hundred twenty-one million, four hundred forty thousand, three hundred twenty-six".