135772057 has 2 divisors, whose sum is σ = 135772058. Its totient is φ = 135772056.

The previous prime is 135772019. The next prime is 135772097. The reversal of 135772057 is 750277531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77951241 + 57820816 = 8829^2 + 7604^2 .

It is a cyclic number.

It is not a de Polignac number, because 135772057 - 2¹¹ = 135770009 is a prime.

It is a super-2 number, since 2×135772057² = 36868102924022498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (135772097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67886028 + 67886029.

It is an arithmetic number, because the mean of its divisors is an integer number (67886029).

Almost surely, 2^135772057 is an apocalyptic number.

It is an amenable number.

135772057 is a deficient number, since it is larger than the sum of its proper divisors (1).

135772057 is an equidigital number, since it uses as much as digits as its factorization.

135772057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51450, while the sum is 37.

The square root of 135772057 is about 11652.1267157545. The cubic root of 135772057 is about 513.9688507823.

The spelling of 135772057 in words is "one hundred thirty-five million, seven hundred seventy-two thousand, fifty-seven".