1375457487 has 8 divisors (see below), whose sum is σ = 1834164480. Its totient is φ = 916861080.

The previous prime is 1375457467. The next prime is 1375457497. The reversal of 1375457487 is 7847545731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1375457487 - 2⁷ = 1375457359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375457467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7912 + ... + 53042.

It is an arithmetic number, because the mean of its divisors is an integer number (229270560).

Almost surely, 2^1375457487 is an apocalyptic number.

1375457487 is a deficient number, since it is larger than the sum of its proper divisors (458706993).

1375457487 is a wasteful number, since it uses less digits than its factorization.

1375457487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55293.

The product of its digits is 3292800, while the sum is 51.

The square root of 1375457487 is about 37087.1606758997. The cubic root of 1375457487 is about 1112.1133579101.

The spelling of 1375457487 in words is "one billion, three hundred seventy-five million, four hundred fifty-seven thousand, four hundred eighty-seven".