1418711381 has 2 divisors, whose sum is σ = 1418711382. Its totient is φ = 1418711380.

The previous prime is 1418711377. The next prime is 1418711383. The reversal of 1418711381 is 1831178141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1373888356 + 44823025 = 37066^2 + 6695^2 .

It is a cyclic number.

It is not a de Polignac number, because 1418711381 - 2² = 1418711377 is a prime.

It is a super-2 number, since 2×1418711381² = 4025483965157854322, which contains 22 as substring.

Together with 1418711383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1418711383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 709355690 + 709355691.

It is an arithmetic number, because the mean of its divisors is an integer number (709355691).

Almost surely, 2^1418711381 is an apocalyptic number.

It is an amenable number.

1418711381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1418711381 is an equidigital number, since it uses as much as digits as its factorization.

1418711381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 35.

The square root of 1418711381 is about 37665.7852831983. The cubic root of 1418711381 is about 1123.6507626578.

The spelling of 1418711381 in words is "one billion, four hundred eighteen million, seven hundred eleven thousand, three hundred eighty-one".