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148857157 is a prime number
BaseRepresentation
bin10001101111101…
…10000101000101
3101101002201122001
420313312011011
5301101412112
622434305301
73455156611
oct1067660505
9341081561
10148857157
1177031649
1241a28231
1324abb977
1415aac341
15d105c57
hex8df6145

148857157 has 2 divisors, whose sum is σ = 148857158. Its totient is φ = 148857156.

The previous prime is 148857139. The next prime is 148857161. The reversal of 148857157 is 751758841.

148857157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137030436 + 11826721 = 11706^2 + 3439^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-148857157 is a prime.

It is a super-3 number, since 3×1488571573 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148857197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74428578 + 74428579.

It is an arithmetic number, because the mean of its divisors is an integer number (74428579).

Almost surely, 2148857157 is an apocalyptic number.

It is an amenable number.

148857157 is a deficient number, since it is larger than the sum of its proper divisors (1).

148857157 is an equidigital number, since it uses as much as digits as its factorization.

148857157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 313600, while the sum is 46.

The square root of 148857157 is about 12200.7031354754. The cubic root of 148857157 is about 529.9764520213.

The spelling of 148857157 in words is "one hundred forty-eight million, eight hundred fifty-seven thousand, one hundred fifty-seven".