1920751101 has 6 divisors (see below), whose sum is σ = 2774418270. Its totient is φ = 1280500728.

The previous prime is 1920751099. The next prime is 1920751123. The reversal of 1920751101 is 1011570291.

It can be written as a sum of positive squares in only one way, i.e., 1219825476 + 700925625 = 34926^2 + 26475^2 .

It is not a de Polignac number, because 1920751101 - 2¹ = 1920751099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1920751601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 106708386 + ... + 106708403.

It is an arithmetic number, because the mean of its divisors is an integer number (462403045).

Almost surely, 2^1920751101 is an apocalyptic number.

It is an amenable number.

1920751101 is a deficient number, since it is larger than the sum of its proper divisors (853667169).

1920751101 is a wasteful number, since it uses less digits than its factorization.

1920751101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213416795 (or 213416792 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 27.

The square root of 1920751101 is about 43826.3744907105. The cubic root of 1920751101 is about 1243.0550538521.

The spelling of 1920751101 in words is "one billion, nine hundred twenty million, seven hundred fifty-one thousand, one hundred one".