1530145277 has 2 divisors, whose sum is σ = 1530145278. Its totient is φ = 1530145276.

The previous prime is 1530145193. The next prime is 1530145291. The reversal of 1530145277 is 7725410351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1500322756 + 29822521 = 38734^2 + 5461^2 .

It is a cyclic number.

It is not a de Polignac number, because 1530145277 - 2²² = 1525950973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1530144277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765072638 + 765072639.

It is an arithmetic number, because the mean of its divisors is an integer number (765072639).

Almost surely, 2^1530145277 is an apocalyptic number.

It is an amenable number.

1530145277 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530145277 is an equidigital number, since it uses as much as digits as its factorization.

1530145277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 1530145277 is about 39117.0714266802. The cubic root of 1530145277 is about 1152.3318223834.

The spelling of 1530145277 in words is "one billion, five hundred thirty million, one hundred forty-five thousand, two hundred seventy-seven".