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157061 is a prime number
BaseRepresentation
bin100110010110000101
321222110002
4212112011
520011221
63211045
71222622
oct462605
9258402
10157061
11a8003
1276a85
1356648
1441349
153180b
hex26585

157061 has 2 divisors, whose sum is σ = 157062. Its totient is φ = 157060.

The previous prime is 157057. The next prime is 157081. The reversal of 157061 is 160751.

It is an a-pointer prime, because the next prime (157081) can be obtained adding 157061 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148225 + 8836 = 385^2 + 94^2 .

It is an emirp because it is prime and its reverse (160751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157061 - 22 = 157057 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 (157051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78530 + 78531.

It is an arithmetic number, because the mean of its divisors is an integer number (78531).

2157061 is an apocalyptic number.

It is an amenable number.

157061 is a deficient number, since it is larger than the sum of its proper divisors (1).

157061 is an equidigital number, since it uses as much as digits as its factorization.

157061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 157061 is about 396.3092227037. The cubic root of 157061 is about 53.9538929709.

The spelling of 157061 in words is "one hundred fifty-seven thousand, sixty-one".