1540530371 has 2 divisors, whose sum is σ = 1540530372. Its totient is φ = 1540530370.

The previous prime is 1540530359. The next prime is 1540530377. The reversal of 1540530371 is 1730350451.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1540530371 - 2²⁶ = 1473421507 is a prime.

It is not a weakly prime, because it can be changed into another prime (1540530377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 770265185 + 770265186.

It is an arithmetic number, because the mean of its divisors is an integer number (770265186).

Almost surely, 2^1540530371 is an apocalyptic number.

1540530371 is a deficient number, since it is larger than the sum of its proper divisors (1).

1540530371 is an equidigital number, since it uses as much as digits as its factorization.

1540530371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 1540530371 is about 39249.5907112418. The cubic root of 1540530371 is about 1154.9329049060.

The spelling of 1540530371 in words is "one billion, five hundred forty million, five hundred thirty thousand, three hundred seventy-one".