145215351124 has 12 divisors (see below), whose sum is σ = 254147562900. Its totient is φ = 72601761728.

The previous prime is 145215351121. The next prime is 145215351173. The reversal of 145215351124 is 421153512541.

It can be written as a sum of positive squares in 2 ways, for example, as 70473259024 + 74742092100 = 265468^2 + 273390^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 145215351124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145215351121) 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 3 ways as a sum of consecutive naturals, for example, 1422979 + ... + 1521610.

It is an arithmetic number, because the mean of its divisors is an integer number (21178963575).

Almost surely, 2^145215351124 is an apocalyptic number.

It is an amenable number.

145215351124 is a deficient number, since it is larger than the sum of its proper divisors (108932211776).

145215351124 is a wasteful number, since it uses less digits than its factorization.

145215351124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956922 (or 2956920 counting only the distinct ones).

The product of its digits is 24000, while the sum is 34.

Adding to 145215351124 its reverse (421153512541), we get a palindrome (566368863665).

The spelling of 145215351124 in words is "one hundred forty-five billion, two hundred fifteen million, three hundred fifty-one thousand, one hundred twenty-four".