1355402423 has 2 divisors, whose sum is σ = 1355402424. Its totient is φ = 1355402422.

The previous prime is 1355402407. The next prime is 1355402431. The reversal of 1355402423 is 3242045531.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1355402423 - 2⁴ = 1355402407 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1355102423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677701211 + 677701212.

It is an arithmetic number, because the mean of its divisors is an integer number (677701212).

Almost surely, 2^1355402423 is an apocalyptic number.

1355402423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355402423 is an equidigital number, since it uses as much as digits as its factorization.

1355402423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 1355402423 is about 36815.7904030322. The cubic root of 1355402423 is about 1106.6817611871.

Adding to 1355402423 its reverse (3242045531), we get a palindrome (4597447954).

The spelling of 1355402423 in words is "one billion, three hundred fifty-five million, four hundred two thousand, four hundred twenty-three".