155030031244 has 24 divisors (see below), whose sum is σ = 297258872400. Its totient is φ = 70160470080.

The previous prime is 155030031223. The next prime is 155030031259. The reversal of 155030031244 is 442130030551.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7682959 + ... + 7703110.

It is an arithmetic number, because the mean of its divisors is an integer number (12385786350).

Almost surely, 2^155030031244 is an apocalyptic number.

It is an amenable number.

155030031244 is a deficient number, since it is larger than the sum of its proper divisors (142228841156).

155030031244 is a wasteful number, since it uses less digits than its factorization.

155030031244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15386313 (or 15386311 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 155030031244 its reverse (442130030551), we get a palindrome (597160061795).

The spelling of 155030031244 in words is "one hundred fifty-five billion, thirty million, thirty-one thousand, two hundred forty-four".