1478467631 has 2 divisors, whose sum is σ = 1478467632. Its totient is φ = 1478467630.

The previous prime is 1478467619. The next prime is 1478467637. The reversal of 1478467631 is 1367648741.

It is a strong prime.

It is an emirp because it is prime and its reverse (1367648741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1478467631 - 2⁶ = 1478467567 is a prime.

It is a super-2 number, since 2×1478467631² = 4371733071829504322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1478467637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 739233815 + 739233816.

It is an arithmetic number, because the mean of its divisors is an integer number (739233816).

Almost surely, 2^1478467631 is an apocalyptic number.

1478467631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1478467631 is an equidigital number, since it uses as much as digits as its factorization.

1478467631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 47.

The square root of 1478467631 is about 38450.8469477592. The cubic root of 1478467631 is about 1139.2103978711.

The spelling of 1478467631 in words is "one billion, four hundred seventy-eight million, four hundred sixty-seven thousand, six hundred thirty-one".