1992351631 has 2 divisors, whose sum is σ = 1992351632. Its totient is φ = 1992351630.

The previous prime is 1992351629. The next prime is 1992351643. The reversal of 1992351631 is 1361532991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1992351631 - 2¹ = 1992351629 is a prime.

It is a super-2 number, since 2×1992351631² = 7938930043096720322, which contains 22 as substring.

Together with 1992351629, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1992351611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 996175815 + 996175816.

It is an arithmetic number, because the mean of its divisors is an integer number (996175816).

Almost surely, 2^1992351631 is an apocalyptic number.

1992351631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1992351631 is an equidigital number, since it uses as much as digits as its factorization.

1992351631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43740, while the sum is 40.

The square root of 1992351631 is about 44635.7662754881. The cubic root of 1992351631 is about 1258.3129413982.

The spelling of 1992351631 in words is "one billion, nine hundred ninety-two million, three hundred fifty-one thousand, six hundred thirty-one".