145106521236440 has 16 divisors (see below), whose sum is σ = 326489672782080. Its totient is φ = 58042608494560.

The previous prime is 145106521236437. The next prime is 145106521236533. The reversal of 145106521236440 is 44632125601541.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 145106521236391 and 145106521236400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1813831515416 + ... + 1813831515495.

It is an arithmetic number, because the mean of its divisors is an integer number (20405604548880).

Almost surely, 2^{145106521236440} is an apocalyptic number.

145106521236440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145106521236440 is an abundant number, since it is smaller than the sum of its proper divisors (181383151545640).

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

145106521236440 is a wasteful number, since it uses less digits than its factorization.

145106521236440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3627663030922 (or 3627663030918 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 44.

Adding to 145106521236440 its reverse (44632125601541), we get a palindrome (189738646837981).

The spelling of 145106521236440 in words is "one hundred forty-five trillion, one hundred six billion, five hundred twenty-one million, two hundred thirty-six thousand, four hundred forty".