1310155144 has 8 divisors (see below), whose sum is σ = 2456540910. Its totient is φ = 655077568.

The previous prime is 1310155129. The next prime is 1310155157. The reversal of 1310155144 is 4415510131.

It can be written as a sum of positive squares in only one way, i.e., 1307690244 + 2464900 = 36162^2 + 1570^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 81884689 + ... + 81884704.

Almost surely, 2^1310155144 is an apocalyptic number.

It is an amenable number.

1310155144 is a deficient number, since it is larger than the sum of its proper divisors (1146385766).

1310155144 is a wasteful number, since it uses less digits than its factorization.

1310155144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163769399 (or 163769395 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1310155144 is about 36196.0653110252. The cubic root of 1310155144 is about 1094.2273745975.

Adding to 1310155144 its reverse (4415510131), we get a palindrome (5725665275).

The spelling of 1310155144 in words is "one billion, three hundred ten million, one hundred fifty-five thousand, one hundred forty-four".