1375426144 has 24 divisors (see below), whose sum is σ = 2722059648. Its totient is φ = 684109440.

The previous prime is 1375426133. The next prime is 1375426163. The reversal of 1375426144 is 4416245731.

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, 106407 + ... + 118630.

It is an arithmetic number, because the mean of its divisors is an integer number (113419152).

Almost surely, 2^1375426144 is an apocalyptic number.

It is an amenable number.

1375426144 is a deficient number, since it is larger than the sum of its proper divisors (1346633504).

1375426144 is a wasteful number, since it uses less digits than its factorization.

1375426144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225238 (or 225230 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 1375426144 is about 37086.7381148572. The cubic root of 1375426144 is about 1112.1049104823.

The spelling of 1375426144 in words is "one billion, three hundred seventy-five million, four hundred twenty-six thousand, one hundred forty-four".