1950898481 has 4 divisors (see below), whose sum is σ = 2229598272. Its totient is φ = 1672198692.

The previous prime is 1950898471. The next prime is 1950898487. The reversal of 1950898481 is 1848980591.

It is a happy number.

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: 1848980591 = 1723 ⋅1073117.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1950898481 is a prime.

It is a super-2 number, since 2×1950898481² = 7612009766336214722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1950898487) 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, 139349885 + ... + 139349898.

It is an arithmetic number, because the mean of its divisors is an integer number (557399568).

Almost surely, 2^1950898481 is an apocalyptic number.

It is an amenable number.

1950898481 is a deficient number, since it is larger than the sum of its proper divisors (278699791).

1950898481 is an equidigital number, since it uses as much as digits as its factorization.

1950898481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278699790.

The product of its (nonzero) digits is 829440, while the sum is 53.

The square root of 1950898481 is about 44168.9764540678. The cubic root of 1950898481 is about 1249.5248286727.

The spelling of 1950898481 in words is "one billion, nine hundred fifty million, eight hundred ninety-eight thousand, four hundred eighty-one".