1487239057 has 4 divisors (see below), whose sum is σ = 1492727296. Its totient is φ = 1481750820.

The previous prime is 1487239051. The next prime is 1487239063. The reversal of 1487239057 is 7509327841.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1487239051) and next prime (1487239063).

It is a cyclic number.

It is not a de Polignac number, because 1487239057 - 2¹¹ = 1487237009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1487238998 and 1487239016.

It is not an unprimeable number, because it can be changed into a prime (1487239051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2743713 + ... + 2744254.

It is an arithmetic number, because the mean of its divisors is an integer number (373181824).

Almost surely, 2^1487239057 is an apocalyptic number.

It is an amenable number.

1487239057 is a deficient number, since it is larger than the sum of its proper divisors (5488239).

1487239057 is an equidigital number, since it uses as much as digits as its factorization.

1487239057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5488238.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 1487239057 is about 38564.7385184964. The cubic root of 1487239057 is about 1141.4588527945.

The spelling of 1487239057 in words is "one billion, four hundred eighty-seven million, two hundred thirty-nine thousand, fifty-seven".