1375975953 has 48 divisors (see below), whose sum is σ = 2314690560. Its totient is φ = 778831200.

The previous prime is 1375975921. The next prime is 1375975961. The reversal of 1375975953 is 3595795731.

It is not a de Polignac number, because 1375975953 - 2⁵ = 1375975921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1375975953.

It is not an unprimeable number, because it can be changed into a prime (1375975553) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 128400 + ... + 138702.

It is an arithmetic number, because the mean of its divisors is an integer number (48222720).

Almost surely, 2^1375975953 is an apocalyptic number.

It is an amenable number.

1375975953 is a deficient number, since it is larger than the sum of its proper divisors (938714607).

1375975953 is a wasteful number, since it uses less digits than its factorization.

1375975953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10410 (or 10407 counting only the distinct ones).

The product of its digits is 4465125, while the sum is 54.

The square root of 1375975953 is about 37094.1498487295. The cubic root of 1375975953 is about 1112.2530739774.

The spelling of 1375975953 in words is "one billion, three hundred seventy-five million, nine hundred seventy-five thousand, nine hundred fifty-three".