1420201357 has 12 divisors (see below), whose sum is σ = 1477361568. Its totient is φ = 1365147000.

The previous prime is 1420201351. The next prime is 1420201361. The reversal of 1420201357 is 7531020241.

It is a happy number.

It is not a de Polignac number, because 1420201357 - 2¹¹ = 1420199309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420201351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140218 + ... + 150004.

It is an arithmetic number, because the mean of its divisors is an integer number (123113464).

Almost surely, 2^1420201357 is an apocalyptic number.

It is an amenable number.

1420201357 is a deficient number, since it is larger than the sum of its proper divisors (57160211).

1420201357 is an equidigital number, since it uses as much as digits as its factorization.

1420201357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10000 (or 9969 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 1420201357 is about 37685.5589981096. The cubic root of 1420201357 is about 1124.0439896686.

Adding to 1420201357 its reverse (7531020241), we get a palindrome (8951221598).

The spelling of 1420201357 in words is "one billion, four hundred twenty million, two hundred one thousand, three hundred fifty-seven".