155134697 has 2 divisors, whose sum is σ = 155134698. Its totient is φ = 155134696.

The previous prime is 155134667. The next prime is 155134781. The reversal of 155134697 is 796431551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97693456 + 57441241 = 9884^2 + 7579^2 .

It is an emirp because it is prime and its reverse (796431551) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155134697 is a prime.

It is not a weakly prime, because it can be changed into another prime (155134607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77567348 + 77567349.

It is an arithmetic number, because the mean of its divisors is an integer number (77567349).

Almost surely, 2^155134697 is an apocalyptic number.

It is an amenable number.

155134697 is a deficient number, since it is larger than the sum of its proper divisors (1).

155134697 is an equidigital number, since it uses as much as digits as its factorization.

155134697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 41.

The square root of 155134697 is about 12455.3079849516. The cubic root of 155134697 is about 537.3240925723.

The spelling of 155134697 in words is "one hundred fifty-five million, one hundred thirty-four thousand, six hundred ninety-seven".