1354426609 has 4 divisors (see below), whose sum is σ = 1425712240. Its totient is φ = 1283140980.

The previous prime is 1354426603. The next prime is 1354426621. The reversal of 1354426609 is 9066244531.

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.

It is a cyclic number.

It is not a de Polignac number, because 1354426609 - 2²⁵ = 1320872177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1354426603) 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, 35642787 + ... + 35642824.

It is an arithmetic number, because the mean of its divisors is an integer number (356428060).

Almost surely, 2^1354426609 is an apocalyptic number.

1354426609 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1354426609 is a deficient number, since it is larger than the sum of its proper divisors (71285631).

1354426609 is an equidigital number, since it uses as much as digits as its factorization.

1354426609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71285630.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 1354426609 is about 36802.5353610319. The cubic root of 1354426609 is about 1106.4161144190.

The spelling of 1354426609 in words is "one billion, three hundred fifty-four million, four hundred twenty-six thousand, six hundred nine".