1015420451 has 2 divisors, whose sum is σ = 1015420452. Its totient is φ = 1015420450.

The previous prime is 1015420433. The next prime is 1015420463. The reversal of 1015420451 is 1540245101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1015420451 - 2²⁶ = 948311587 is a prime.

It is not a weakly prime, because it can be changed into another prime (1015420411) 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, 507710225 + 507710226.

It is an arithmetic number, because the mean of its divisors is an integer number (507710226).

Almost surely, 2^1015420451 is an apocalyptic number.

1015420451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1015420451 is an equidigital number, since it uses as much as digits as its factorization.

1015420451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1015420451 is about 31865.6625696062. The cubic root of 1015420451 is about 1005.1139532347.

Adding to 1015420451 its reverse (1540245101), we get a palindrome (2555665552).

The spelling of 1015420451 in words is "one billion, fifteen million, four hundred twenty thousand, four hundred fifty-one".