145425453432 has 128 divisors (see below), whose sum is σ = 430010380800. Its totient is φ = 40100433408.

The previous prime is 145425453373. The next prime is 145425453499. The reversal of 145425453432 is 234354524541.

It is a super-2 number, since 2×145425453432² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15405418 + ... + 15414854.

It is an arithmetic number, because the mean of its divisors is an integer number (3359456100).

Almost surely, 2^145425453432 is an apocalyptic number.

145425453432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145425453432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215005190400).

145425453432 is an abundant number, since it is smaller than the sum of its proper divisors (284584927368).

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

145425453432 is a wasteful number, since it uses less digits than its factorization.

145425453432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12645 (or 12641 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 42.

Adding to 145425453432 its reverse (234354524541), we get a palindrome (379779977973).

The spelling of 145425453432 in words is "one hundred forty-five billion, four hundred twenty-five million, four hundred fifty-three thousand, four hundred thirty-two".