1351144988 has 12 divisors (see below), whose sum is σ = 2376507672. Its totient is φ = 672142800.

The previous prime is 1351144969. The next prime is 1351145009. The reversal of 1351144988 is 8894411531.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 856538 + ... + 858113.

It is an arithmetic number, because the mean of its divisors is an integer number (198042306).

Almost surely, 2^1351144988 is an apocalyptic number.

It is an amenable number.

1351144988 is a deficient number, since it is larger than the sum of its proper divisors (1025362684).

1351144988 is a wasteful number, since it uses less digits than its factorization.

1351144988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714852 (or 1714850 counting only the distinct ones).

The product of its digits is 138240, while the sum is 44.

The square root of 1351144988 is about 36757.9241524872. The cubic root of 1351144988 is about 1105.5218184726.

The spelling of 1351144988 in words is "one billion, three hundred fifty-one million, one hundred forty-four thousand, nine hundred eighty-eight".