1436642461 has 2 divisors, whose sum is σ = 1436642462. Its totient is φ = 1436642460.

The previous prime is 1436642453. The next prime is 1436642503. The reversal of 1436642461 is 1642466341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 966836836 + 469805625 = 31094^2 + 21675^2 .

It is a cyclic number.

It is not a de Polignac number, because 1436642461 - 2³ = 1436642453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1436642461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1436642411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 718321230 + 718321231.

It is an arithmetic number, because the mean of its divisors is an integer number (718321231).

Almost surely, 2^1436642461 is an apocalyptic number.

It is an amenable number.

1436642461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1436642461 is an equidigital number, since it uses as much as digits as its factorization.

1436642461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 37.

The square root of 1436642461 is about 37903.0666437427. The cubic root of 1436642461 is about 1128.3648946592.

The spelling of 1436642461 in words is "one billion, four hundred thirty-six million, six hundred forty-two thousand, four hundred sixty-one".