275138077 has 2 divisors, whose sum is σ = 275138078. Its totient is φ = 275138076.

The previous prime is 275138057. The next prime is 275138099. The reversal of 275138077 is 770831572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141943396 + 133194681 = 11914^2 + 11541^2 .

It is a cyclic number.

It is not a de Polignac number, because 275138077 - 2¹⁵ = 275105309 is a prime.

It is a super-2 number, since 2×275138077² = 151401922830515858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275138057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137569038 + 137569039.

It is an arithmetic number, because the mean of its divisors is an integer number (137569039).

Almost surely, 2^275138077 is an apocalyptic number.

It is an amenable number.

275138077 is a deficient number, since it is larger than the sum of its proper divisors (1).

275138077 is an equidigital number, since it uses as much as digits as its factorization.

275138077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82320, while the sum is 40.

The square root of 275138077 is about 16587.2866075196. The cubic root of 275138077 is about 650.4045426485.

The spelling of 275138077 in words is "two hundred seventy-five million, one hundred thirty-eight thousand, seventy-seven".