1355264623 has 4 divisors (see below), whose sum is σ = 1426594360. Its totient is φ = 1283934888.

The previous prime is 1355264621. The next prime is 1355264629. The reversal of 1355264623 is 3264625531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3264625531 = 31 ⋅105310501.

It is a cyclic number.

It is not a de Polignac number, because 1355264623 - 2¹ = 1355264621 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 (1355264621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35664840 + ... + 35664877.

It is an arithmetic number, because the mean of its divisors is an integer number (356648590).

Almost surely, 2^1355264623 is an apocalyptic number.

1355264623 is a deficient number, since it is larger than the sum of its proper divisors (71329737).

1355264623 is an equidigital number, since it uses as much as digits as its factorization.

1355264623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71329736.

The product of its digits is 129600, while the sum is 37.

The square root of 1355264623 is about 36813.9188758817. The cubic root of 1355264623 is about 1106.6442554957.

The spelling of 1355264623 in words is "one billion, three hundred fifty-five million, two hundred sixty-four thousand, six hundred twenty-three".