1486557157 has 4 divisors (see below), whose sum is σ = 1486651456. Its totient is φ = 1486462860.

The previous prime is 1486557119. The next prime is 1486557173. The reversal of 1486557157 is 7517556841.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7517556841 = 1831 ⋅4105711.

It is a cyclic number.

It is not a de Polignac number, because 1486557157 - 2¹⁹ = 1486032869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1486557157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1486552157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17133 + ... + 57154.

It is an arithmetic number, because the mean of its divisors is an integer number (371662864).

Almost surely, 2^1486557157 is an apocalyptic number.

It is an amenable number.

1486557157 is a deficient number, since it is larger than the sum of its proper divisors (94299).

1486557157 is an equidigital number, since it uses as much as digits as its factorization.

1486557157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94298.

The product of its digits is 1176000, while the sum is 49.

The square root of 1486557157 is about 38555.8965269905. The cubic root of 1486557157 is about 1141.2843729358.

The spelling of 1486557157 in words is "one billion, four hundred eighty-six million, five hundred fifty-seven thousand, one hundred fifty-seven".