1648474031 has 2 divisors, whose sum is σ = 1648474032. Its totient is φ = 1648474030.

The previous prime is 1648474019. The next prime is 1648474043. The reversal of 1648474031 is 1304748461.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1648474019) and next prime (1648474043).

It is an emirp because it is prime and its reverse (1304748461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1648474031 - 2²² = 1644279727 is a prime.

It is a super-2 number, since 2×1648474031² = 5434933261762777922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1648474081) 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 as a sum of consecutive naturals, namely, 824237015 + 824237016.

It is an arithmetic number, because the mean of its divisors is an integer number (824237016).

Almost surely, 2^1648474031 is an apocalyptic number.

1648474031 is the 18158-th centered decagonal number.

1648474031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1648474031 is an equidigital number, since it uses as much as digits as its factorization.

1648474031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 1648474031 is about 40601.4042983737. The cubic root of 1648474031 is about 1181.3013582515.

The spelling of 1648474031 in words is "one billion, six hundred forty-eight million, four hundred seventy-four thousand, thirty-one".