155144324 has 12 divisors (see below), whose sum is σ = 273073164. Its totient is φ = 77123424.

The previous prime is 155144323. The next prime is 155144351. The reversal of 155144324 is 423441551.

It can be written as a sum of positive squares in 2 ways, for example, as 120121600 + 35022724 = 10960^2 + 5918^2 .

It is a super-2 number, since 2×155144324² = 48139522538833952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155144323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111407 + ... + 112790.

It is an arithmetic number, because the mean of its divisors is an integer number (22756097).

Almost surely, 2^155144324 is an apocalyptic number.

It is an amenable number.

155144324 is a deficient number, since it is larger than the sum of its proper divisors (117928840).

155144324 is a wasteful number, since it uses less digits than its factorization.

155144324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224374 (or 224372 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 155144324 is about 12455.6944406966. The cubic root of 155144324 is about 537.3352070256.

Adding to 155144324 its reverse (423441551), we get a palindrome (578585875).

The spelling of 155144324 in words is "one hundred fifty-five million, one hundred forty-four thousand, three hundred twenty-four".