1920553245 has 96 divisors (see below), whose sum is σ = 3821755392. Its totient is φ = 884860416.

The previous prime is 1920553237. The next prime is 1920553301. The reversal of 1920553245 is 5423550291.

It is a happy number.

It is not a de Polignac number, because 1920553245 - 2³ = 1920553237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 630867 + ... + 633903.

It is an arithmetic number, because the mean of its divisors is an integer number (39809952).

Almost surely, 2^1920553245 is an apocalyptic number.

1920553245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1920553245 is a deficient number, since it is larger than the sum of its proper divisors (1901202147).

1920553245 is a wasteful number, since it uses less digits than its factorization.

1920553245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131 (or 3128 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 1920553245 is about 43824.1171616725. The cubic root of 1920553245 is about 1243.0123701426.

The spelling of 1920553245 in words is "one billion, nine hundred twenty million, five hundred fifty-three thousand, two hundred forty-five".