1438145101 has 2 divisors, whose sum is σ = 1438145102. Its totient is φ = 1438145100.

The previous prime is 1438145083. The next prime is 1438145147. The reversal of 1438145101 is 1015418341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 937951876 + 500193225 = 30626^2 + 22365^2 .

It is a cyclic number.

It is not a de Polignac number, because 1438145101 - 2¹¹ = 1438143053 is a prime.

It is a super-2 number, since 2×1438145101² = 4136522663060600402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1438145101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1436145101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 719072550 + 719072551.

It is an arithmetic number, because the mean of its divisors is an integer number (719072551).

Almost surely, 2^1438145101 is an apocalyptic number.

It is an amenable number.

1438145101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1438145101 is an equidigital number, since it uses as much as digits as its factorization.

1438145101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 1438145101 is about 37922.8836060762. The cubic root of 1438145101 is about 1128.7581577653.

The spelling of 1438145101 in words is "one billion, four hundred thirty-eight million, one hundred forty-five thousand, one hundred one".