1246113109 has 2 divisors, whose sum is σ = 1246113110. Its totient is φ = 1246113108.

The previous prime is 1246113103. The next prime is 1246113133. The reversal of 1246113109 is 9013116421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1188732484 + 57380625 = 34478^2 + 7575^2 .

It is a cyclic number.

It is not a de Polignac number, because 1246113109 - 2¹³ = 1246104917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1246113103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 623056554 + 623056555.

It is an arithmetic number, because the mean of its divisors is an integer number (623056555).

Almost surely, 2^1246113109 is an apocalyptic number.

It is an amenable number.

1246113109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1246113109 is an equidigital number, since it uses as much as digits as its factorization.

1246113109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1246113109 is about 35300.3273214286. The cubic root of 1246113109 is about 1076.0996453394.

It can be divided in two parts, 124 and 6113109, that multiplied together give a triangular number (758025516 = T₃₈₉₃₆).

The spelling of 1246113109 in words is "one billion, two hundred forty-six million, one hundred thirteen thousand, one hundred nine".