1540932901 has 2 divisors, whose sum is σ = 1540932902. Its totient is φ = 1540932900.

The previous prime is 1540932859. The next prime is 1540932937. The reversal of 1540932901 is 1092390451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1540484001 + 448900 = 39249^2 + 670^2 .

It is a cyclic number.

It is not a de Polignac number, because 1540932901 - 2¹⁹ = 1540408613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1540932961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 770466450 + 770466451.

It is an arithmetic number, because the mean of its divisors is an integer number (770466451).

Almost surely, 2^1540932901 is an apocalyptic number.

It is an amenable number.

1540932901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1540932901 is an equidigital number, since it uses as much as digits as its factorization.

1540932901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 1540932901 is about 39254.7182004915. The cubic root of 1540932901 is about 1155.0334881565.

The spelling of 1540932901 in words is "one billion, five hundred forty million, nine hundred thirty-two thousand, nine hundred one".