1375321527 has 12 divisors (see below), whose sum is σ = 1987581960. Its totient is φ = 916416528.

The previous prime is 1375321511. The next prime is 1375321543. The reversal of 1375321527 is 7251235731.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1375321511) and next prime (1375321543).

It is not a de Polignac number, because 1375321527 - 2⁴ = 1375321511 is a prime.

It is a super-2 number, since 2×1375321527² = 3783018605259223458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1375321491 and 1375321500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375321427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19452 + ... + 55937.

It is an arithmetic number, because the mean of its divisors is an integer number (165631830).

Almost surely, 2^1375321527 is an apocalyptic number.

1375321527 is a deficient number, since it is larger than the sum of its proper divisors (612260433).

1375321527 is a wasteful number, since it uses less digits than its factorization.

1375321527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77422 (or 77419 counting only the distinct ones).

The product of its digits is 44100, while the sum is 36.

The square root of 1375321527 is about 37085.3276512423. The cubic root of 1375321527 is about 1112.0767136382.

The spelling of 1375321527 in words is "one billion, three hundred seventy-five million, three hundred twenty-one thousand, five hundred twenty-seven".