1631051 has 2 divisors, whose sum is σ = 1631052. Its totient is φ = 1631050.

The previous prime is 1631029. The next prime is 1631053. The reversal of 1631051 is 1501361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1631051 - 2⁶ = 1630987 is a prime.

Together with 1631053, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1631053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 815525 + 815526.

It is an arithmetic number, because the mean of its divisors is an integer number (815526).

2^1631051 is an apocalyptic number.

1631051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1631051 is an equidigital number, since it uses as much as digits as its factorization.

1631051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1631051 is about 1277.1260705193. The cubic root of 1631051 is about 117.7124810783.

It can be divided in two parts, 16310 and 51, that added together give a palindrome (16361).

The spelling of 1631051 in words is "one million, six hundred thirty-one thousand, fifty-one".