1900144005 has 16 divisors (see below), whose sum is σ = 3040808640. Its totient is φ = 1013217408.

The previous prime is 1900143953. The next prime is 1900144019. The reversal of 1900144005 is 5004410091.

It is not a de Polignac number, because 1900144005 - 2⁷ = 1900143877 is a prime.

It is a super-2 number, since 2×1900144005² = 7221094479474880050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108126 + ... + 124464.

It is an arithmetic number, because the mean of its divisors is an integer number (190050540).

Almost surely, 2^1900144005 is an apocalyptic number.

1900144005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1900144005 is a deficient number, since it is larger than the sum of its proper divisors (1140664635).

1900144005 is a wasteful number, since it uses less digits than its factorization.

1900144005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24100.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1900144005 is about 43590.6412547464. The cubic root of 1900144005 is about 1238.5936199218.

Adding to 1900144005 its reverse (5004410091), we get a palindrome (6904554096).

The spelling of 1900144005 in words is "one billion, nine hundred million, one hundred forty-four thousand, five".