1540151051 has 2 divisors, whose sum is σ = 1540151052. Its totient is φ = 1540151050.

The previous prime is 1540151029. The next prime is 1540151087. The reversal of 1540151051 is 1501510451.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1540151051 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1540151651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 770075525 + 770075526.

It is an arithmetic number, because the mean of its divisors is an integer number (770075526).

Almost surely, 2^1540151051 is an apocalyptic number.

1540151051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1540151051 is an equidigital number, since it uses as much as digits as its factorization.

1540151051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 500, while the sum is 23.

The square root of 1540151051 is about 39244.7582614545. The cubic root of 1540151051 is about 1154.8381052796.

The spelling of 1540151051 in words is "one billion, five hundred forty million, one hundred fifty-one thousand, fifty-one".