145401326420 has 48 divisors (see below), whose sum is σ = 349010581248. Its totient is φ = 49845112320.

The previous prime is 145401326387. The next prime is 145401326449. The reversal of 145401326420 is 24623104541.

It is a super-2 number, since 2×145401326420² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1024385 + ... + 1157655.

It is an arithmetic number, because the mean of its divisors is an integer number (7271053776).

Almost surely, 2^145401326420 is an apocalyptic number.

145401326420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145401326420 is an abundant number, since it is smaller than the sum of its proper divisors (203609254828).

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

145401326420 is a wasteful number, since it uses less digits than its factorization.

145401326420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141080 (or 141078 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 145401326420 in words is "one hundred forty-five billion, four hundred one million, three hundred twenty-six thousand, four hundred twenty".