1540948807 has 2 divisors, whose sum is σ = 1540948808. Its totient is φ = 1540948806.

The previous prime is 1540948793. The next prime is 1540948813. The reversal of 1540948807 is 7088490451.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1540948807 - 2⁷ = 1540948679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1540948847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 770474403 + 770474404.

It is an arithmetic number, because the mean of its divisors is an integer number (770474404).

Almost surely, 2^1540948807 is an apocalyptic number.

1540948807 is a deficient number, since it is larger than the sum of its proper divisors (1).

1540948807 is an equidigital number, since it uses as much as digits as its factorization.

1540948807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 1540948807 is about 39254.9207998182. The cubic root of 1540948807 is about 1155.0374623507.

The spelling of 1540948807 in words is "one billion, five hundred forty million, nine hundred forty-eight thousand, eight hundred seven".