1369489951 has 2 divisors, whose sum is σ = 1369489952. Its totient is φ = 1369489950.

The previous prime is 1369489937. The next prime is 1369489963. The reversal of 1369489951 is 1599849631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1369489951 - 2²¹ = 1367392799 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1369489892 and 1369489901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1369489931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 684744975 + 684744976.

It is an arithmetic number, because the mean of its divisors is an integer number (684744976).

Almost surely, 2^1369489951 is an apocalyptic number.

1369489951 is a deficient number, since it is larger than the sum of its proper divisors (1).

1369489951 is an equidigital number, since it uses as much as digits as its factorization.

1369489951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2099520, while the sum is 55.

The square root of 1369489951 is about 37006.6203671721. The cubic root of 1369489951 is about 1110.5026944178.

The spelling of 1369489951 in words is "one billion, three hundred sixty-nine million, four hundred eighty-nine thousand, nine hundred fifty-one".