7154989 has 4 divisors (see below), whose sum is σ = 7276320. Its totient is φ = 7033660.

The previous prime is 7154981. The next prime is 7154993. The reversal of 7154989 is 9894517.

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: 9894517 = 53 ⋅186689.

It is a cyclic number.

It is not a de Polignac number, because 7154989 - 2³ = 7154981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7154981) 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, 60577 + ... + 60694.

It is an arithmetic number, because the mean of its divisors is an integer number (1819080).

Almost surely, 2^7154989 is an apocalyptic number.

It is an amenable number.

7154989 is a deficient number, since it is larger than the sum of its proper divisors (121331).

7154989 is a wasteful number, since it uses less digits than its factorization.

7154989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121330.

The product of its digits is 90720, while the sum is 43.

The square root of 7154989 is about 2674.8811188537. The cubic root of 7154989 is about 192.6946499081.

The spelling of 7154989 in words is "seven million, one hundred fifty-four thousand, nine hundred eighty-nine".