427119551 has 2 divisors, whose sum is σ = 427119552. Its totient is φ = 427119550.

The previous prime is 427119479. The next prime is 427119571. The reversal of 427119551 is 155911724.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427119551 is a prime.

It is a super-2 number, since 2×427119551² = 364862221692883202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427119571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213559775 + 213559776.

It is an arithmetic number, because the mean of its divisors is an integer number (213559776).

Almost surely, 2^427119551 is an apocalyptic number.

427119551 is a deficient number, since it is larger than the sum of its proper divisors (1).

427119551 is an equidigital number, since it uses as much as digits as its factorization.

427119551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 35.

The square root of 427119551 is about 20666.8708565182. The cubic root of 427119551 is about 753.0950917136.

The spelling of 427119551 in words is "four hundred twenty-seven million, one hundred nineteen thousand, five hundred fifty-one".