145287275380 has 144 divisors (see below), whose sum is σ = 345297423744. Its totient is φ = 51229601280.

The previous prime is 145287275369. The next prime is 145287275381. The reversal of 145287275380 is 83572782541.

It is a happy number.

It is a super-2 number, since 2×145287275380² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145287275381) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68176915 + ... + 68179045.

It is an arithmetic number, because the mean of its divisors is an integer number (2397898776).

Almost surely, 2^145287275380 is an apocalyptic number.

145287275380 is a gapful number since it is divisible by the number (10) 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 145287275380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172648711872).

145287275380 is an abundant number, since it is smaller than the sum of its proper divisors (200010148364).

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

145287275380 is a wasteful number, since it uses less digits than its factorization.

145287275380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3066 (or 3051 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 52.

The spelling of 145287275380 in words is "one hundred forty-five billion, two hundred eighty-seven million, two hundred seventy-five thousand, three hundred eighty".