1900052017 has 4 divisors (see below), whose sum is σ = 1902989376. Its totient is φ = 1897114660.

The previous prime is 1900051981. The next prime is 1900052047. The reversal of 1900052017 is 7102500091.

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: 7102500091 = 17 ⋅417794123.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1900052017 is a prime.

It is a super-2 number, since 2×1900052017² = 7220395334611536578, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1900051982 and 1900052000.

It is not an unprimeable number, because it can be changed into a prime (1900052047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1467709 + ... + 1469002.

It is an arithmetic number, because the mean of its divisors is an integer number (475747344).

Almost surely, 2^1900052017 is an apocalyptic number.

It is an amenable number.

1900052017 is a deficient number, since it is larger than the sum of its proper divisors (2937359).

1900052017 is an equidigital number, since it uses as much as digits as its factorization.

1900052017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2937358.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 1900052017 is about 43589.5861072344. The cubic root of 1900052017 is about 1238.5736323861.

It can be divided in two parts, 19000 and 52017, that added together give a palindrome (71017).

The spelling of 1900052017 in words is "one billion, nine hundred million, fifty-two thousand, seventeen".