1226078951 has 2 divisors, whose sum is σ = 1226078952. Its totient is φ = 1226078950.

The previous prime is 1226078939. The next prime is 1226078993. The reversal of 1226078951 is 1598706221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1226078951 - 2¹⁴ = 1226062567 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1226078899 and 1226078908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1226048951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613039475 + 613039476.

It is an arithmetic number, because the mean of its divisors is an integer number (613039476).

Almost surely, 2^1226078951 is an apocalyptic number.

1226078951 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226078951 is an equidigital number, since it uses as much as digits as its factorization.

1226078951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 1226078951 is about 35015.4101932278. The cubic root of 1226078951 is about 1070.3015282620.

The spelling of 1226078951 in words is "one billion, two hundred twenty-six million, seventy-eight thousand, nine hundred fifty-one".