1454144639 has 2 divisors, whose sum is σ = 1454144640. Its totient is φ = 1454144638.

The previous prime is 1454144599. The next prime is 1454144677. The reversal of 1454144639 is 9364414541.

It is a strong prime.

It is an emirp because it is prime and its reverse (9364414541) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1454144639 is a prime.

It is a super-2 number, since 2×1454144639² = 4229073262264880642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1454144596 and 1454144605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1454144239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 727072319 + 727072320.

It is an arithmetic number, because the mean of its divisors is an integer number (727072320).

Almost surely, 2^1454144639 is an apocalyptic number.

1454144639 is a deficient number, since it is larger than the sum of its proper divisors (1).

1454144639 is an equidigital number, since it uses as much as digits as its factorization.

1454144639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 41.

The square root of 1454144639 is about 38133.2484716422. The cubic root of 1454144639 is about 1132.9285872373.

The spelling of 1454144639 in words is "one billion, four hundred fifty-four million, one hundred forty-four thousand, six hundred thirty-nine".