1421411377 has 2 divisors, whose sum is σ = 1421411378. Its totient is φ = 1421411376.

The previous prime is 1421411363. The next prime is 1421411393. The reversal of 1421411377 is 7731141241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1389500176 + 31911201 = 37276^2 + 5649^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421411377 - 2²³ = 1413022769 is a prime.

It is a super-2 number, since 2×1421411377² = 4040820605330072258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1421411347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710705688 + 710705689.

It is an arithmetic number, because the mean of its divisors is an integer number (710705689).

Almost surely, 2^1421411377 is an apocalyptic number.

It is an amenable number.

1421411377 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421411377 is an equidigital number, since it uses as much as digits as its factorization.

1421411377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 31.

The square root of 1421411377 is about 37701.6097401689. The cubic root of 1421411377 is about 1124.3631297701.

The spelling of 1421411377 in words is "one billion, four hundred twenty-one million, four hundred eleven thousand, three hundred seventy-seven".