1354683985 has 4 divisors (see below), whose sum is σ = 1625620788. Its totient is φ = 1083747184.

The previous prime is 1354683977. The next prime is 1354683991. The reversal of 1354683985 is 5893864531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 713530944 + 641153041 = 26712^2 + 25321^2 .

It is a cyclic number.

It is not a de Polignac number, because 1354683985 - 2³ = 1354683977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135468394 + ... + 135468403.

It is an arithmetic number, because the mean of its divisors is an integer number (406405197).

Almost surely, 2^1354683985 is an apocalyptic number.

It is an amenable number.

1354683985 is a deficient number, since it is larger than the sum of its proper divisors (270936803).

1354683985 is an equidigital number, since it uses as much as digits as its factorization.

1354683985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270936802.

The product of its digits is 3110400, while the sum is 52.

The square root of 1354683985 is about 36806.0319105442. The cubic root of 1354683985 is about 1106.4861925161.

The spelling of 1354683985 in words is "one billion, three hundred fifty-four million, six hundred eighty-three thousand, nine hundred eighty-five".