1355712401 has 2 divisors, whose sum is σ = 1355712402. Its totient is φ = 1355712400.

The previous prime is 1355712383. The next prime is 1355712403. The reversal of 1355712401 is 1042175531.

It is a Cunningham number, because it is equal to 36820²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1355712400 + 1 = 36820^2 + 1^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1355712401 is a prime.

It is a super-2 number, since 2×1355712401² = 3675912228450369602, which contains 22 as substring.

Together with 1355712403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1355712403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677856200 + 677856201.

It is an arithmetic number, because the mean of its divisors is an integer number (677856201).

Almost surely, 2^1355712401 is an apocalyptic number.

It is an amenable number.

1355712401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355712401 is an equidigital number, since it uses as much as digits as its factorization.

1355712401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 1355712401 is about 36820.0000135796. Note that the first 4 decimals coincide. The cubic root of 1355712401 is about 1106.7661201064.

Adding to 1355712401 its reverse (1042175531), we get a palindrome (2397887932).

The spelling of 1355712401 in words is "one billion, three hundred fifty-five million, seven hundred twelve thousand, four hundred one".