145456263420 has 48 divisors (see below), whose sum is σ = 438606581280. Its totient is φ = 35804618496.

The previous prime is 145456263419. The next prime is 145456263437. The reversal of 145456263420 is 24362654541.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93240415 + ... + 93241974.

It is an arithmetic number, because the mean of its divisors is an integer number (9137637110).

Almost surely, 2^145456263420 is an apocalyptic number.

145456263420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145456263420 is an abundant number, since it is smaller than the sum of its proper divisors (293150317860).

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

145456263420 is a wasteful number, since it uses less digits than its factorization.

145456263420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186482414 (or 186482412 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 145456263420 in words is "one hundred forty-five billion, four hundred fifty-six million, two hundred sixty-three thousand, four hundred twenty".