426154247 has 2 divisors, whose sum is σ = 426154248. Its totient is φ = 426154246.

The previous prime is 426154243. The next prime is 426154279. The reversal of 426154247 is 742451624.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 426154247 - 2² = 426154243 is a prime.

It is a super-2 number, since 2×426154247² = 363214884472274018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426154243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213077123 + 213077124.

It is an arithmetic number, because the mean of its divisors is an integer number (213077124).

Almost surely, 2^426154247 is an apocalyptic number.

426154247 is a deficient number, since it is larger than the sum of its proper divisors (1).

426154247 is an equidigital number, since it uses as much as digits as its factorization.

426154247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 35.

The square root of 426154247 is about 20643.5037481528. The cubic root of 426154247 is about 752.5273240190.

The spelling of 426154247 in words is "four hundred twenty-six million, one hundred fifty-four thousand, two hundred forty-seven".