1540370087 has 2 divisors, whose sum is σ = 1540370088. Its totient is φ = 1540370086.

The previous prime is 1540370059. The next prime is 1540370101. The reversal of 1540370087 is 7800730451.

It is a strong prime.

It is an emirp because it is prime and its reverse (7800730451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1540370087 - 2¹⁶ = 1540304551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1540370387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 770185043 + 770185044.

It is an arithmetic number, because the mean of its divisors is an integer number (770185044).

Almost surely, 2^1540370087 is an apocalyptic number.

1540370087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1540370087 is an equidigital number, since it uses as much as digits as its factorization.

1540370087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 1540370087 is about 39247.5488024412. The cubic root of 1540370087 is about 1154.8928486393.

The spelling of 1540370087 in words is "one billion, five hundred forty million, three hundred seventy thousand, eighty-seven".