102474157 has 2 divisors, whose sum is σ = 102474158. Its totient is φ = 102474156.

The previous prime is 102474149. The next prime is 102474167. The reversal of 102474157 is 751474201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96452041 + 6022116 = 9821^2 + 2454^2 .

It is an emirp because it is prime and its reverse (751474201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102474157 - 2³ = 102474149 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102474137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51237078 + 51237079.

It is an arithmetic number, because the mean of its divisors is an integer number (51237079).

Almost surely, 2^102474157 is an apocalyptic number.

It is an amenable number.

102474157 is a deficient number, since it is larger than the sum of its proper divisors (1).

102474157 is an equidigital number, since it uses as much as digits as its factorization.

102474157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 102474157 is about 10122.9519904028. The cubic root of 102474157 is about 467.9557464791.

The spelling of 102474157 in words is "one hundred two million, four hundred seventy-four thousand, one hundred fifty-seven".