1485556431 has 4 divisors (see below), whose sum is σ = 1980741912. Its totient is φ = 990370952.

The previous prime is 1485556427. The next prime is 1485556463. The reversal of 1485556431 is 1346555841.

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

It is a cyclic number.

It is not a de Polignac number, because 1485556431 - 2² = 1485556427 is a prime.

It is a super-2 number, since 2×1485556431² = 4413755819370915522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1485556411) 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, 247592736 + ... + 247592741.

It is an arithmetic number, because the mean of its divisors is an integer number (495185478).

Almost surely, 2^1485556431 is an apocalyptic number.

1485556431 is a deficient number, since it is larger than the sum of its proper divisors (495185481).

1485556431 is an equidigital number, since it uses as much as digits as its factorization.

1485556431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495185480.

The product of its digits is 288000, while the sum is 42.

The square root of 1485556431 is about 38542.9167422498. The cubic root of 1485556431 is about 1141.0282174470.

The spelling of 1485556431 in words is "one billion, four hundred eighty-five million, five hundred fifty-six thousand, four hundred thirty-one".