1438936097 has 4 divisors (see below), whose sum is σ = 1501498560. Its totient is φ = 1376373636.

The previous prime is 1438936091. The next prime is 1438936129. The reversal of 1438936097 is 7906398341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7906398341 = 439 ⋅18010019.

It is not a de Polignac number, because 1438936097 - 2⁶ = 1438936033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1438936091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31281197 + ... + 31281242.

It is an arithmetic number, because the mean of its divisors is an integer number (375374640).

Almost surely, 2^1438936097 is an apocalyptic number.

It is an amenable number.

1438936097 is a deficient number, since it is larger than the sum of its proper divisors (62562463).

1438936097 is an equidigital number, since it uses as much as digits as its factorization.

1438936097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62562462.

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 1438936097 is about 37933.3111789625. The cubic root of 1438936097 is about 1128.9650630690.

The spelling of 1438936097 in words is "one billion, four hundred thirty-eight million, nine hundred thirty-six thousand, ninety-seven".