1015378051 has 2 divisors, whose sum is σ = 1015378052. Its totient is φ = 1015378050.

The previous prime is 1015378027. The next prime is 1015378139. The reversal of 1015378051 is 1508735101.

It is a weak prime.

It is an emirp because it is prime and its reverse (1508735101) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1015378051 is a prime.

It is not a weakly prime, because it can be changed into another prime (1015378451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507689025 + 507689026.

It is an arithmetic number, because the mean of its divisors is an integer number (507689026).

Almost surely, 2^1015378051 is an apocalyptic number.

1015378051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1015378051 is an equidigital number, since it uses as much as digits as its factorization.

1015378051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 31.

The square root of 1015378051 is about 31864.9972697316. The cubic root of 1015378051 is about 1005.0999631597.

The spelling of 1015378051 in words is "one billion, fifteen million, three hundred seventy-eight thousand, fifty-one".