1538853061 has 2 divisors, whose sum is σ = 1538853062. Its totient is φ = 1538853060.

The previous prime is 1538853059. The next prime is 1538853079. The reversal of 1538853061 is 1603588351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1437850561 + 101002500 = 37919^2 + 10050^2 .

It is a cyclic number.

It is not a de Polignac number, because 1538853061 - 2¹ = 1538853059 is a prime.

Together with 1538853059, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1538853011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 769426530 + 769426531.

It is an arithmetic number, because the mean of its divisors is an integer number (769426531).

Almost surely, 2^1538853061 is an apocalyptic number.

It is an amenable number.

1538853061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1538853061 is an equidigital number, since it uses as much as digits as its factorization.

1538853061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 1538853061 is about 39228.2176627998. The cubic root of 1538853061 is about 1154.5135939051.

The spelling of 1538853061 in words is "one billion, five hundred thirty-eight million, eight hundred fifty-three thousand, sixty-one".