1375042531 has 2 divisors, whose sum is σ = 1375042532. Its totient is φ = 1375042530.

The previous prime is 1375042523. The next prime is 1375042553. The reversal of 1375042531 is 1352405731.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1375042531 - 2³ = 1375042523 is a prime.

It is a super-2 number, since 2×1375042531² = 3781483924117771922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1375042493 and 1375042502.

It is not a weakly prime, because it can be changed into another prime (1375042561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687521265 + 687521266.

It is an arithmetic number, because the mean of its divisors is an integer number (687521266).

Almost surely, 2^1375042531 is an apocalyptic number.

1375042531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375042531 is an equidigital number, since it uses as much as digits as its factorization.

1375042531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 1375042531 is about 37081.5659189307. The cubic root of 1375042531 is about 1112.0015103904.

The spelling of 1375042531 in words is "one billion, three hundred seventy-five million, forty-two thousand, five hundred thirty-one".