1356601673 has 4 divisors (see below), whose sum is σ = 1550401920. Its totient is φ = 1162801428.

The previous prime is 1356601657. The next prime is 1356601693. The reversal of 1356601673 is 3761066531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3761066531 = 313 ⋅12016187.

It is a cyclic number.

It is not a de Polignac number, because 1356601673 - 2⁴ = 1356601657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1356601613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96900113 + ... + 96900126.

It is an arithmetic number, because the mean of its divisors is an integer number (387600480).

Almost surely, 2^1356601673 is an apocalyptic number.

It is an amenable number.

1356601673 is a deficient number, since it is larger than the sum of its proper divisors (193800247).

1356601673 is an equidigital number, since it uses as much as digits as its factorization.

1356601673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193800246.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 1356601673 is about 36832.0739709292. The cubic root of 1356601673 is about 1107.0080595723.

The spelling of 1356601673 in words is "one billion, three hundred fifty-six million, six hundred one thousand, six hundred seventy-three".