1072775129 has 2 divisors, whose sum is σ = 1072775130. Its totient is φ = 1072775128.

The previous prime is 1072775087. The next prime is 1072775147. The reversal of 1072775129 is 9215772701.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 909625600 + 163149529 = 30160^2 + 12773^2 .

It is a cyclic number.

It is not a de Polignac number, because 1072775129 - 2¹² = 1072771033 is a prime.

It is not a weakly prime, because it can be changed into another prime (1072775149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536387564 + 536387565.

It is an arithmetic number, because the mean of its divisors is an integer number (536387565).

Almost surely, 2^1072775129 is an apocalyptic number.

It is an amenable number.

1072775129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072775129 is an equidigital number, since it uses as much as digits as its factorization.

1072775129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61740, while the sum is 41.

The square root of 1072775129 is about 32753.2460834037. The cubic root of 1072775129 is about 1023.6926036670.

The spelling of 1072775129 in words is "one billion, seventy-two million, seven hundred seventy-five thousand, one hundred twenty-nine".