1225024831 has 2 divisors, whose sum is σ = 1225024832. Its totient is φ = 1225024830.

The previous prime is 1225024817. The next prime is 1225024849. The reversal of 1225024831 is 1384205221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1225024831 - 2¹¹ = 1225022783 is a prime.

It is a super-2 number, since 2×1225024831² = 3001371673133157122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1225024831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1225024331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612512415 + 612512416.

It is an arithmetic number, because the mean of its divisors is an integer number (612512416).

Almost surely, 2^1225024831 is an apocalyptic number.

1225024831 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225024831 is an equidigital number, since it uses as much as digits as its factorization.

1225024831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 1225024831 is about 35000.3547267738. The cubic root of 1225024831 is about 1069.9947101378.

The spelling of 1225024831 in words is "one billion, two hundred twenty-five million, twenty-four thousand, eight hundred thirty-one".