1421250007 has 2 divisors, whose sum is σ = 1421250008. Its totient is φ = 1421250006.

The previous prime is 1421249987. The next prime is 1421250043. The reversal of 1421250007 is 7000521241.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1421250007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1421250007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421250107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710625003 + 710625004.

It is an arithmetic number, because the mean of its divisors is an integer number (710625004).

Almost surely, 2^1421250007 is an apocalyptic number.

1421250007 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421250007 is an equidigital number, since it uses as much as digits as its factorization.

1421250007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 1421250007 is about 37699.4695851281. The cubic root of 1421250007 is about 1124.3205792583.

Adding to 1421250007 its reverse (7000521241), we get a palindrome (8421771248).

The spelling of 1421250007 in words is "one billion, four hundred twenty-one million, two hundred fifty thousand, seven".