1405541461 has 2 divisors, whose sum is σ = 1405541462. Its totient is φ = 1405541460.

The previous prime is 1405541437. The next prime is 1405541479. The reversal of 1405541461 is 1641455041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1285222500 + 120318961 = 35850^2 + 10969^2 .

It is a cyclic number.

It is not a de Polignac number, because 1405541461 - 2²³ = 1397152853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1405541411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702770730 + 702770731.

It is an arithmetic number, because the mean of its divisors is an integer number (702770731).

Almost surely, 2^1405541461 is an apocalyptic number.

It is an amenable number.

1405541461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405541461 is an equidigital number, since it uses as much as digits as its factorization.

1405541461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 1405541461 is about 37490.5516230423. The cubic root of 1405541461 is about 1120.1629920633.

The spelling of 1405541461 in words is "one billion, four hundred five million, five hundred forty-one thousand, four hundred sixty-one".