1015601651 has 2 divisors, whose sum is σ = 1015601652. Its totient is φ = 1015601650.

The previous prime is 1015601603. The next prime is 1015601659. The reversal of 1015601651 is 1561065101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1015601651 - 2²² = 1011407347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1015601651.

It is not a weakly prime, because it can be changed into another prime (1015601659) 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, 507800825 + 507800826.

It is an arithmetic number, because the mean of its divisors is an integer number (507800826).

Almost surely, 2^1015601651 is an apocalyptic number.

1015601651 is a deficient number, since it is larger than the sum of its proper divisors (1).

1015601651 is an equidigital number, since it uses as much as digits as its factorization.

1015601651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 1015601651 is about 31868.5056285983. The cubic root of 1015601651 is about 1005.1737366200.

Adding to 1015601651 its reverse (1561065101), we get a palindrome (2576666752).

The spelling of 1015601651 in words is "one billion, fifteen million, six hundred one thousand, six hundred fifty-one".