1005225407 has 2 divisors, whose sum is σ = 1005225408. Its totient is φ = 1005225406.

The previous prime is 1005225349. The next prime is 1005225443. The reversal of 1005225407 is 7045225001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1005225407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1005225497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502612703 + 502612704.

It is an arithmetic number, because the mean of its divisors is an integer number (502612704).

Almost surely, 2^1005225407 is an apocalyptic number.

1005225407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005225407 is an equidigital number, since it uses as much as digits as its factorization.

1005225407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 1005225407 is about 31705.2898898591. The cubic root of 1005225407 is about 1001.7387772348.

The spelling of 1005225407 in words is "one billion, five million, two hundred twenty-five thousand, four hundred seven".