155496157 has 2 divisors, whose sum is σ = 155496158. Its totient is φ = 155496156.

The previous prime is 155496151. The next prime is 155496167. The reversal of 155496157 is 751694551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139925241 + 15570916 = 11829^2 + 3946^2 .

It is an emirp because it is prime and its reverse (751694551) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155496157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155496151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77748078 + 77748079.

It is an arithmetic number, because the mean of its divisors is an integer number (77748079).

Almost surely, 2^155496157 is an apocalyptic number.

It is an amenable number.

155496157 is a deficient number, since it is larger than the sum of its proper divisors (1).

155496157 is an equidigital number, since it uses as much as digits as its factorization.

155496157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 189000, while the sum is 43.

The square root of 155496157 is about 12469.8098221264. The cubic root of 155496157 is about 537.7410861521.

The spelling of 155496157 in words is "one hundred fifty-five million, four hundred ninety-six thousand, one hundred fifty-seven".