1450639 has 2 divisors, whose sum is σ = 1450640. Its totient is φ = 1450638.

The previous prime is 1450637. The next prime is 1450651. The reversal of 1450639 is 9360541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1450639 - 2¹ = 1450637 is a prime.

Together with 1450637, it forms a pair of twin primes.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1450637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 725319 + 725320.

It is an arithmetic number, because the mean of its divisors is an integer number (725320).

2^1450639 is an apocalyptic number.

1450639 is a deficient number, since it is larger than the sum of its proper divisors (1).

1450639 is an equidigital number, since it uses as much as digits as its factorization.

1450639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 1450639 is about 1204.4247589617. The cubic root of 1450639 is about 113.2017436583.

It can be divided in two parts, 14 and 50639, that added together give a cube (50653 = 37³).

The spelling of 1450639 in words is "one million, four hundred fifty thousand, six hundred thirty-nine".