145423301552 has 80 divisors (see below), whose sum is σ = 300060794880. Its totient is φ = 68039046144.

The previous prime is 145423301437. The next prime is 145423301557. The reversal of 145423301552 is 255103324541.

It is a super-2 number, since 2×145423301552² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145423301557) by changing a digit.

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, 36656273 + ... + 36660239.

It is an arithmetic number, because the mean of its divisors is an integer number (3750759936).

Almost surely, 2^145423301552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145423301552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150030397440).

145423301552 is an abundant number, since it is smaller than the sum of its proper divisors (154637493328).

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

145423301552 is a wasteful number, since it uses less digits than its factorization.

145423301552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4738 (or 4732 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 145423301552 in words is "one hundred forty-five billion, four hundred twenty-three million, three hundred one thousand, five hundred fifty-two".