1430072461 has 2 divisors, whose sum is σ = 1430072462. Its totient is φ = 1430072460.

The previous prime is 1430072443. The next prime is 1430072489. The reversal of 1430072461 is 1642700341.

It is an a-pointer prime, because the next prime (1430072489) can be obtained adding 1430072461 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1050991561 + 379080900 = 32419^2 + 19470^2 .

It is a cyclic number.

It is not a de Polignac number, because 1430072461 - 2⁹ = 1430071949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1430072491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715036230 + 715036231.

It is an arithmetic number, because the mean of its divisors is an integer number (715036231).

Almost surely, 2^1430072461 is an apocalyptic number.

It is an amenable number.

1430072461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1430072461 is an equidigital number, since it uses as much as digits as its factorization.

1430072461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 1430072461 is about 37816.2988802447. The cubic root of 1430072461 is about 1126.6422004401.

The spelling of 1430072461 in words is "one billion, four hundred thirty million, seventy-two thousand, four hundred sixty-one".