1454622139 has 2 divisors, whose sum is σ = 1454622140. Its totient is φ = 1454622138.

The previous prime is 1454622137. The next prime is 1454622173. The reversal of 1454622139 is 9312264541.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1454622139 - 2¹ = 1454622137 is a prime.

Together with 1454622137, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1454622098 and 1454622107.

It is not a weakly prime, because it can be changed into another prime (1454622131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 727311069 + 727311070.

It is an arithmetic number, because the mean of its divisors is an integer number (727311070).

Almost surely, 2^1454622139 is an apocalyptic number.

1454622139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1454622139 is an equidigital number, since it uses as much as digits as its factorization.

1454622139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 37.

The square root of 1454622139 is about 38139.5088982541. The cubic root of 1454622139 is about 1133.0525809087.

The spelling of 1454622139 in words is "one billion, four hundred fifty-four million, six hundred twenty-two thousand, one hundred thirty-nine".