2451389 has 2 divisors, whose sum is σ = 2451390. Its totient is φ = 2451388.

The previous prime is 2451377. The next prime is 2451401. The reversal of 2451389 is 9831542.

It is a balanced prime because it is at equal distance from previous prime (2451377) and next prime (2451401).

It can be written as a sum of positive squares in only one way, i.e., 2427364 + 24025 = 1558^2 + 155^2 .

It is a cyclic number.

It is not a de Polignac number, because 2451389 - 2¹² = 2447293 is a prime.

It is a super-4 number, since 4×2451389⁴ (a number of 27 digits) contains 4444 as substring.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2451359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1225694 + 1225695.

It is an arithmetic number, because the mean of its divisors is an integer number (1225695).

2^2451389 is an apocalyptic number.

It is an amenable number.

2451389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2451389 is an equidigital number, since it uses as much as digits as its factorization.

2451389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The square root of 2451389 is about 1565.6912211544. The cubic root of 2451389 is about 134.8354465099.

The spelling of 2451389 in words is "two million, four hundred fifty-one thousand, three hundred eighty-nine".