1375556542 has 4 divisors (see below), whose sum is σ = 2063334816. Its totient is φ = 687778270.

The previous prime is 1375556531. The next prime is 1375556563. The reversal of 1375556542 is 2456555731.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343889134 + ... + 343889137.

It is an arithmetic number, because the mean of its divisors is an integer number (515833704).

Almost surely, 2^1375556542 is an apocalyptic number.

1375556542 is a deficient number, since it is larger than the sum of its proper divisors (687778274).

1375556542 is an equidigital number, since it uses as much as digits as its factorization.

1375556542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687778273.

The product of its digits is 630000, while the sum is 43.

The square root of 1375556542 is about 37088.4960870618. The cubic root of 1375556542 is about 1112.1400539356.

The spelling of 1375556542 in words is "one billion, three hundred seventy-five million, five hundred fifty-six thousand, five hundred forty-two".