1438145107 has 16 divisors (see below), whose sum is σ = 1747975680. Its totient is φ = 1155051648.

The previous prime is 1438145101. The next prime is 1438145147. The reversal of 1438145107 is 7015418341.

It is a cyclic number.

It is not a de Polignac number, because 1438145107 - 2²⁷ = 1303927379 is a prime.

It is a super-2 number, since 2×1438145107² = 4136522697576082898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1438145101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394 + ... + 53632.

It is an arithmetic number, because the mean of its divisors is an integer number (109248480).

Almost surely, 2^1438145107 is an apocalyptic number.

1438145107 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1438145107 is a deficient number, since it is larger than the sum of its proper divisors (309830573).

1438145107 is a wasteful number, since it uses less digits than its factorization.

1438145107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53490.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 1438145107 is about 37922.8836851841. The cubic root of 1438145107 is about 1128.7581593351.

The spelling of 1438145107 in words is "one billion, four hundred thirty-eight million, one hundred forty-five thousand, one hundred seven".