1011274651 has 2 divisors, whose sum is σ = 1011274652. Its totient is φ = 1011274650.

The previous prime is 1011274643. The next prime is 1011274673. The reversal of 1011274651 is 1564721101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1011274651 - 2³ = 1011274643 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011274151) 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, 505637325 + 505637326.

It is an arithmetic number, because the mean of its divisors is an integer number (505637326).

Almost surely, 2^1011274651 is an apocalyptic number.

1011274651 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011274651 is an equidigital number, since it uses as much as digits as its factorization.

1011274651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 1011274651 is about 31800.5448223769. The cubic root of 1011274651 is about 1003.7441806151.

Adding to 1011274651 its reverse (1564721101), we get a palindrome (2575995752).

The spelling of 1011274651 in words is "one billion, eleven million, two hundred seventy-four thousand, six hundred fifty-one".