1498773121 has 2 divisors, whose sum is σ = 1498773122. Its totient is φ = 1498773120.

The previous prime is 1498773119. The next prime is 1498773179. The reversal of 1498773121 is 1213778941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1028100096 + 470673025 = 32064^2 + 21695^2 .

It is a cyclic number.

It is not a de Polignac number, because 1498773121 - 2¹ = 1498773119 is a prime.

Together with 1498773119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1498773421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 749386560 + 749386561.

It is an arithmetic number, because the mean of its divisors is an integer number (749386561).

Almost surely, 2^1498773121 is an apocalyptic number.

It is an amenable number.

1498773121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1498773121 is an equidigital number, since it uses as much as digits as its factorization.

1498773121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 43.

The square root of 1498773121 is about 38713.9912822225. The cubic root of 1498773121 is about 1144.4020627885.

The spelling of 1498773121 in words is "one billion, four hundred ninety-eight million, seven hundred seventy-three thousand, one hundred twenty-one".