1457979989 has 2 divisors, whose sum is σ = 1457979990. Its totient is φ = 1457979988.

The previous prime is 1457979977. The next prime is 1457980001. The reversal of 1457979989 is 9899797541.

It is a balanced prime because it is at equal distance from previous prime (1457979977) and next prime (1457980001).

It can be written as a sum of positive squares in only one way, i.e., 1284003889 + 173976100 = 35833^2 + 13190^2 .

It is a cyclic number.

It is not a de Polignac number, because 1457979989 - 2¹⁶ = 1457914453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1457975989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728989994 + 728989995.

It is an arithmetic number, because the mean of its divisors is an integer number (728989995).

Almost surely, 2^1457979989 is an apocalyptic number.

It is an amenable number.

1457979989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1457979989 is an equidigital number, since it uses as much as digits as its factorization.

1457979989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51438240, while the sum is 68.

The square root of 1457979989 is about 38183.5041477337. The cubic root of 1457979989 is about 1133.9237571697.

The spelling of 1457979989 in words is "one billion, four hundred fifty-seven million, nine hundred seventy-nine thousand, nine hundred eighty-nine".