1481970389 has 2 divisors, whose sum is σ = 1481970390. Its totient is φ = 1481970388.

The previous prime is 1481970367. The next prime is 1481970397. The reversal of 1481970389 is 9830791841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1159947364 + 322023025 = 34058^2 + 17945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1481970389 is a prime.

It is a super-2 number, since 2×1481970389² = 4392472467745622642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1481970349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 740985194 + 740985195.

It is an arithmetic number, because the mean of its divisors is an integer number (740985195).

Almost surely, 2^1481970389 is an apocalyptic number.

It is an amenable number.

1481970389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1481970389 is an equidigital number, since it uses as much as digits as its factorization.

1481970389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 50.

The square root of 1481970389 is about 38496.3685170433. The cubic root of 1481970389 is about 1140.1093536733.

The spelling of 1481970389 in words is "one billion, four hundred eighty-one million, nine hundred seventy thousand, three hundred eighty-nine".