1450139 has 2 divisors, whose sum is σ = 1450140. Its totient is φ = 1450138.

The previous prime is 1450109. The next prime is 1450147. The reversal of 1450139 is 9310541.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (9310541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1450139 - 2¹² = 1446043 is a prime.

It is not a weakly prime, because it can be changed into another prime (1450109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 725069 + 725070.

It is an arithmetic number, because the mean of its divisors is an integer number (725070).

2^1450139 is an apocalyptic number.

1450139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1450139 is an equidigital number, since it uses as much as digits as its factorization.

1450139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 1450139 is about 1204.2171731046. The cubic root of 1450139 is about 113.1887362006.

The spelling of 1450139 in words is "one million, four hundred fifty thousand, one hundred thirty-nine".