145327721038 has 16 divisors (see below), whose sum is σ = 220681044000. Its totient is φ = 71769151872.

The previous prime is 145327721023. The next prime is 145327721039. The reversal of 145327721038 is 830127723541.

It is a super-2 number, since 2×145327721038² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145327720985 and 145327721003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145327721039) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 280623 + ... + 607786.

It is an arithmetic number, because the mean of its divisors is an integer number (13792565250).

Almost surely, 2^145327721038 is an apocalyptic number.

145327721038 is a deficient number, since it is larger than the sum of its proper divisors (75353322962).

145327721038 is an equidigital number, since it uses as much as digits as its factorization.

145327721038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889419.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 145327721038 in words is "one hundred forty-five billion, three hundred twenty-seven million, seven hundred twenty-one thousand, thirty-eight".