1421213141 has 8 divisors (see below), whose sum is σ = 1514401560. Its totient is φ = 1329090048.

The previous prime is 1421213113. The next prime is 1421213191. The reversal of 1421213141 is 1413121241.

It can be written as a sum of positive squares in 4 ways, for example, as 75864100 + 1345349041 = 8710^2 + 36679^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1421213141 - 2¹⁴ = 1421196757 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 (1421213191) 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, 263576 + ... + 268913.

It is an arithmetic number, because the mean of its divisors is an integer number (189300195).

Almost surely, 2^1421213141 is an apocalyptic number.

It is an amenable number.

1421213141 is a deficient number, since it is larger than the sum of its proper divisors (93188419).

1421213141 is a wasteful number, since it uses less digits than its factorization.

1421213141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532663.

The product of its digits is 192, while the sum is 20.

The square root of 1421213141 is about 37698.9806360862. The cubic root of 1421213141 is about 1124.3108578720.

Adding to 1421213141 its reverse (1413121241), we get a palindrome (2834334382).

The spelling of 1421213141 in words is "one billion, four hundred twenty-one million, two hundred thirteen thousand, one hundred forty-one".