1451225837 has 2 divisors, whose sum is σ = 1451225838. Its totient is φ = 1451225836.

The previous prime is 1451225771. The next prime is 1451225843. The reversal of 1451225837 is 7385221541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 986650921 + 464574916 = 31411^2 + 21554^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1451225837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1451225837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1451225857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 725612918 + 725612919.

It is an arithmetic number, because the mean of its divisors is an integer number (725612919).

Almost surely, 2^1451225837 is an apocalyptic number.

It is an amenable number.

1451225837 is a deficient number, since it is larger than the sum of its proper divisors (1).

1451225837 is an equidigital number, since it uses as much as digits as its factorization.

1451225837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67200, while the sum is 38.

The square root of 1451225837 is about 38094.9581572155. The cubic root of 1451225837 is about 1132.1700636108.

The spelling of 1451225837 in words is "one billion, four hundred fifty-one million, two hundred twenty-five thousand, eight hundred thirty-seven".