1540102897 has 2 divisors, whose sum is σ = 1540102898. Its totient is φ = 1540102896.

The previous prime is 1540102871. The next prime is 1540102951. The reversal of 1540102897 is 7982010451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 919544976 + 620557921 = 30324^2 + 24911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1540102897 is a prime.

It is not a weakly prime, because it can be changed into another prime (1540102297) 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, 770051448 + 770051449.

It is an arithmetic number, because the mean of its divisors is an integer number (770051449).

Almost surely, 2^1540102897 is an apocalyptic number.

It is an amenable number.

1540102897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1540102897 is an equidigital number, since it uses as much as digits as its factorization.

1540102897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 1540102897 is about 39244.1447479748. The cubic root of 1540102897 is about 1154.8260695221.

The spelling of 1540102897 in words is "one billion, five hundred forty million, one hundred two thousand, eight hundred ninety-seven".