1421403245 has 8 divisors (see below), whose sum is σ = 1764500760. Its totient is φ = 1097911360.

The previous prime is 1421403241. The next prime is 1421403253. The reversal of 1421403245 is 5423041241.

It can be written as a sum of positive squares in 4 ways, for example, as 464057764 + 957345481 = 21542^2 + 30941^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1421403245 - 2² = 1421403241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421403241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4901246 + ... + 4901535.

It is an arithmetic number, because the mean of its divisors is an integer number (220562595).

Almost surely, 2^1421403245 is an apocalyptic number.

It is an amenable number.

1421403245 is a deficient number, since it is larger than the sum of its proper divisors (343097515).

1421403245 is an equidigital number, since it uses as much as digits as its factorization.

1421403245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9802815.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1421403245 is about 37701.5018931607. The cubic root of 1421403245 is about 1124.3609855777.

Adding to 1421403245 its reverse (5423041241), we get a palindrome (6844444486).

The spelling of 1421403245 in words is "one billion, four hundred twenty-one million, four hundred three thousand, two hundred forty-five".