152012021444 has 24 divisors (see below), whose sum is σ = 278365730328. Its totient is φ = 72556473600.

The previous prime is 152012021443. The next prime is 152012021453. The reversal of 152012021444 is 444120210251.

It can be written as a sum of positive squares in 4 ways, for example, as 55018393600 + 96993627844 = 234560^2 + 311438^2 .

It is a super-2 number, since 2×152012021444² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (152012021443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9681857 + ... + 9697544.

It is an arithmetic number, because the mean of its divisors is an integer number (11598572097).

Almost surely, 2^152012021444 is an apocalyptic number.

It is an amenable number.

152012021444 is a deficient number, since it is larger than the sum of its proper divisors (126353708884).

152012021444 is a wasteful number, since it uses less digits than its factorization.

152012021444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19379495 (or 19379493 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 152012021444 its reverse (444120210251), we get a palindrome (596132231695).

The spelling of 152012021444 in words is "one hundred fifty-two billion, twelve million, twenty-one thousand, four hundred forty-four".