1416505121 has 2 divisors, whose sum is σ = 1416505122. Its totient is φ = 1416505120.

The previous prime is 1416505073. The next prime is 1416505147. The reversal of 1416505121 is 1215056141.

It is an a-pointer prime, because the next prime (1416505147) can be obtained adding 1416505121 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 988222096 + 428283025 = 31436^2 + 20695^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1416505121 is a prime.

It is not a weakly prime, because it can be changed into another prime (1416505171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 708252560 + 708252561.

It is an arithmetic number, because the mean of its divisors is an integer number (708252561).

Almost surely, 2^1416505121 is an apocalyptic number.

It is an amenable number.

1416505121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1416505121 is an equidigital number, since it uses as much as digits as its factorization.

1416505121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 1416505121 is about 37636.4865655656. The cubic root of 1416505121 is about 1123.0679915709.

The spelling of 1416505121 in words is "one billion, four hundred sixteen million, five hundred five thousand, one hundred twenty-one".