424545731 has 2 divisors, whose sum is σ = 424545732. Its totient is φ = 424545730.

The previous prime is 424545679. The next prime is 424545749. The reversal of 424545731 is 137545424.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424545731 is a prime.

It is a super-2 number, since 2×424545731² = 360478155420648722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 424545691 and 424545700.

It is not a weakly prime, because it can be changed into another prime (424545791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212272865 + 212272866.

It is an arithmetic number, because the mean of its divisors is an integer number (212272866).

Almost surely, 2^424545731 is an apocalyptic number.

424545731 is a deficient number, since it is larger than the sum of its proper divisors (1).

424545731 is an equidigital number, since it uses as much as digits as its factorization.

424545731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67200, while the sum is 35.

The square root of 424545731 is about 20604.5075408271. The cubic root of 424545731 is about 751.5793273731.

The spelling of 424545731 in words is "four hundred twenty-four million, five hundred forty-five thousand, seven hundred thirty-one".