1531051 has 2 divisors, whose sum is σ = 1531052. Its totient is φ = 1531050.

The previous prime is 1531031. The next prime is 1531081. The reversal of 1531051 is 1501351.

It is a weak prime.

It is an emirp because it is prime and its reverse (1501351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1531051 - 2⁹ = 1530539 is a prime.

It is not a weakly prime, because it can be changed into another prime (1531021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765525 + 765526.

It is an arithmetic number, because the mean of its divisors is an integer number (765526).

2^1531051 is an apocalyptic number.

1531051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1531051 is an equidigital number, since it uses as much as digits as its factorization.

1531051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75, while the sum is 16.

The square root of 1531051 is about 1237.3564563213. The cubic root of 1531051 is about 115.2559140140.

The spelling of 1531051 in words is "one million, five hundred thirty-one thousand, fifty-one".