1212370469 has 2 divisors, whose sum is σ = 1212370470. Its totient is φ = 1212370468.

The previous prime is 1212370447. The next prime is 1212370483. The reversal of 1212370469 is 9640732121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1066806244 + 145564225 = 32662^2 + 12065^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212370469 - 2⁸ = 1212370213 is a prime.

It is a super-2 number, since 2×1212370469² = 2939684308206559922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212370769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606185234 + 606185235.

It is an arithmetic number, because the mean of its divisors is an integer number (606185235).

Almost surely, 2^1212370469 is an apocalyptic number.

It is an amenable number.

1212370469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212370469 is an equidigital number, since it uses as much as digits as its factorization.

1212370469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 1212370469 is about 34819.1106865181. The cubic root of 1212370469 is about 1066.2976442993.

The spelling of 1212370469 in words is "one billion, two hundred twelve million, three hundred seventy thousand, four hundred sixty-nine".