7451489 has 2 divisors, whose sum is σ = 7451490. Its totient is φ = 7451488.

The previous prime is 7451473. The next prime is 7451551. The reversal of 7451489 is 9841547.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4695889 + 2755600 = 2167^2 + 1660^2 .

It is a cyclic number.

It is not a de Polignac number, because 7451489 - 2⁴ = 7451473 is a prime.

It is not a weakly prime, because it can be changed into another prime (7451419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3725744 + 3725745.

It is an arithmetic number, because the mean of its divisors is an integer number (3725745).

Almost surely, 2^7451489 is an apocalyptic number.

It is an amenable number.

7451489 is a deficient number, since it is larger than the sum of its proper divisors (1).

7451489 is an equidigital number, since it uses as much as digits as its factorization.

7451489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 38.

The square root of 7451489 is about 2729.7415628590. The cubic root of 7451489 is about 195.3204374246.

It can be divided in two parts, 745 and 1489, that multiplied together give a triangular number (1109305 = T₁₄₈₉).

The spelling of 7451489 in words is "seven million, four hundred fifty-one thousand, four hundred eighty-nine".