7155226451 has 2 divisors, whose sum is σ = 7155226452. Its totient is φ = 7155226450.

The previous prime is 7155226439. The next prime is 7155226453. The reversal of 7155226451 is 1546225517.

It is a strong prime.

It is an emirp because it is prime and its reverse (1546225517) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7155226451 - 2¹⁴ = 7155210067 is a prime.

Together with 7155226453, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7155226453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3577613225 + 3577613226.

It is an arithmetic number, because the mean of its divisors is an integer number (3577613226).

Almost surely, 2^7155226451 is an apocalyptic number.

7155226451 is a deficient number, since it is larger than the sum of its proper divisors (1).

7155226451 is an equidigital number, since it uses as much as digits as its factorization.

7155226451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84000, while the sum is 38.

The square root of 7155226451 is about 84588.5716335251. The cubic root of 7155226451 is about 1926.9678152238.

The spelling of 7155226451 in words is "seven billion, one hundred fifty-five million, two hundred twenty-six thousand, four hundred fifty-one".