1928551453 has 2 divisors, whose sum is σ = 1928551454. Its totient is φ = 1928551452.

The previous prime is 1928551369. The next prime is 1928551459. The reversal of 1928551453 is 3541558291.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1143318969 + 785232484 = 33813^2 + 28022^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1928551453 is a prime.

It is a super-2 number, since 2×1928551453² = 7438621413736822418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1928551459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 964275726 + 964275727.

It is an arithmetic number, because the mean of its divisors is an integer number (964275727).

Almost surely, 2^1928551453 is an apocalyptic number.

It is an amenable number.

1928551453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1928551453 is an equidigital number, since it uses as much as digits as its factorization.

1928551453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216000, while the sum is 43.

The square root of 1928551453 is about 43915.2758502096. The cubic root of 1928551453 is about 1244.7355024858.

The spelling of 1928551453 in words is "one billion, nine hundred twenty-eight million, five hundred fifty-one thousand, four hundred fifty-three".