1499212369 has 2 divisors, whose sum is σ = 1499212370. Its totient is φ = 1499212368.

The previous prime is 1499212343. The next prime is 1499212441. The reversal of 1499212369 is 9632129941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 870958144 + 628254225 = 29512^2 + 25065^2 .

It is a cyclic number.

It is not a de Polignac number, because 1499212369 - 2⁷ = 1499212241 is a prime.

It is a super-2 number, since 2×1499212369² = 4495275454725184322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1499212069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 749606184 + 749606185.

It is an arithmetic number, because the mean of its divisors is an integer number (749606185).

Almost surely, 2^1499212369 is an apocalyptic number.

It is an amenable number.

1499212369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1499212369 is an equidigital number, since it uses as much as digits as its factorization.

1499212369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 46.

The square root of 1499212369 is about 38719.6638544293. The cubic root of 1499212369 is about 1144.5138491582.

The spelling of 1499212369 in words is "one billion, four hundred ninety-nine million, two hundred twelve thousand, three hundred sixty-nine".