1428007201 has 2 divisors, whose sum is σ = 1428007202. Its totient is φ = 1428007200.

The previous prime is 1428007199. The next prime is 1428007223. The reversal of 1428007201 is 1027008241.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1283430625 + 144576576 = 35825^2 + 12024^2 .

It is a cyclic number.

It is not a de Polignac number, because 1428007201 - 2¹ = 1428007199 is a prime.

It is a super-2 number, since 2×1428007201² = 4078409132215708802, which contains 22 as substring.

Together with 1428007199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1428007261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714003600 + 714003601.

It is an arithmetic number, because the mean of its divisors is an integer number (714003601).

Almost surely, 2^1428007201 is an apocalyptic number.

It is an amenable number.

1428007201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1428007201 is an equidigital number, since it uses as much as digits as its factorization.

1428007201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 1428007201 is about 37788.9825345960. The cubic root of 1428007201 is about 1126.0995868938.

The spelling of 1428007201 in words is "one billion, four hundred twenty-eight million, seven thousand, two hundred one".