1354021489 has 4 divisors (see below), whose sum is σ = 1354733424. Its totient is φ = 1353309556.

The previous prime is 1354021469. The next prime is 1354021507. The reversal of 1354021489 is 9841204531.

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: 9841204531 = 563 ⋅17479937.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1354021489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1354021439) 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, 353107 + ... + 356920.

It is an arithmetic number, because the mean of its divisors is an integer number (338683356).

Almost surely, 2^1354021489 is an apocalyptic number.

It is an amenable number.

1354021489 is a deficient number, since it is larger than the sum of its proper divisors (711935).

1354021489 is an equidigital number, since it uses as much as digits as its factorization.

1354021489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711934.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 1354021489 is about 36797.0309807734. The cubic root of 1354021489 is about 1106.3057907365.

The spelling of 1354021489 in words is "one billion, three hundred fifty-four million, twenty-one thousand, four hundred eighty-nine".