1025427719 has 2 divisors, whose sum is σ = 1025427720. Its totient is φ = 1025427718.

The previous prime is 1025427673. The next prime is 1025427737. The reversal of 1025427719 is 9177245201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1025427719 - 2¹⁶ = 1025362183 is a prime.

It is a super-2 number, since 2×1025427719² = 2103004013787085922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1025427769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512713859 + 512713860.

It is an arithmetic number, because the mean of its divisors is an integer number (512713860).

Almost surely, 2^1025427719 is an apocalyptic number.

1025427719 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025427719 is an equidigital number, since it uses as much as digits as its factorization.

1025427719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 1025427719 is about 32022.3003389825. The cubic root of 1025427719 is about 1008.4050633185.

It can be divided in two parts, 10254 and 27719, that added together give a palindrome (37973).

The spelling of 1025427719 in words is "one billion, twenty-five million, four hundred twenty-seven thousand, seven hundred nineteen".