1353885497 has 4 divisors (see below), whose sum is σ = 1353978960. Its totient is φ = 1353792036.

The previous prime is 1353885493. The next prime is 1353885499. The reversal of 1353885497 is 7945883531.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7945883531 = 23 ⋅345473197.

It is a cyclic number.

It is not a de Polignac number, because 1353885497 - 2² = 1353885493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1353885493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19847 + ... + 55692.

It is an arithmetic number, because the mean of its divisors is an integer number (338494740).

Almost surely, 2^1353885497 is an apocalyptic number.

It is an amenable number.

1353885497 is a deficient number, since it is larger than the sum of its proper divisors (93463).

1353885497 is an equidigital number, since it uses as much as digits as its factorization.

1353885497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93462.

The product of its digits is 3628800, while the sum is 53.

The square root of 1353885497 is about 36795.1830678963. The cubic root of 1353885497 is about 1106.2687519904.

The spelling of 1353885497 in words is "one billion, three hundred fifty-three million, eight hundred eighty-five thousand, four hundred ninety-seven".