1451531 has 2 divisors, whose sum is σ = 1451532. Its totient is φ = 1451530.

The previous prime is 1451521. The next prime is 1451539. The reversal of 1451531 is 1351541.

It is a strong prime.

It is an emirp because it is prime and its reverse (1351541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1451531 - 2¹⁰ = 1450507 is a prime.

It is a super-2 number, since 2×1451531² = 4213884487922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1451539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 725765 + 725766.

It is an arithmetic number, because the mean of its divisors is an integer number (725766).

2^1451531 is an apocalyptic number.

1451531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1451531 is an equidigital number, since it uses as much as digits as its factorization.

1451531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 300, while the sum is 20.

The square root of 1451531 is about 1204.7950033097. The cubic root of 1451531 is about 113.2249415423.

The spelling of 1451531 in words is "one million, four hundred fifty-one thousand, five hundred thirty-one".