1314240421 has 4 divisors (see below), whose sum is σ = 1415335852. Its totient is φ = 1213144992.

The previous prime is 1314240409. The next prime is 1314240427. The reversal of 1314240421 is 1240424131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63840100 + 1250400321 = 7990^2 + 35361^2 .

It is a cyclic number.

It is not a de Polignac number, because 1314240421 - 2¹⁹ = 1313716133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1314240392 and 1314240401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1314240427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50547696 + ... + 50547721.

It is an arithmetic number, because the mean of its divisors is an integer number (353833963).

Almost surely, 2^1314240421 is an apocalyptic number.

It is an amenable number.

1314240421 is a deficient number, since it is larger than the sum of its proper divisors (101095431).

1314240421 is a wasteful number, since it uses less digits than its factorization.

1314240421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101095430.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1314240421 is about 36252.4539996950. The cubic root of 1314240421 is about 1095.3635208740.

Adding to 1314240421 its reverse (1240424131), we get a palindrome (2554664552).

The spelling of 1314240421 in words is "one billion, three hundred fourteen million, two hundred forty thousand, four hundred twenty-one".