Search a number
-
+
157201741 is a prime number
BaseRepresentation
bin10010101111010…
…11010101001101
3101221210200020201
421113223111031
5310220423431
623333213501
73616123054
oct1127532515
9357720221
10157201741
1180810aa4
1244791291
1326750ba8
1416c4139b
15dc03461
hex95eb54d

157201741 has 2 divisors, whose sum is σ = 157201742. Its totient is φ = 157201740.

The previous prime is 157201691. The next prime is 157201769. The reversal of 157201741 is 147102751.

It is an a-pointer prime, because the next prime (157201769) can be obtained adding 157201741 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92736900 + 64464841 = 9630^2 + 8029^2 .

It is a cyclic number.

It is not a de Polignac number, because 157201741 - 219 = 156677453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157207741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78600870 + 78600871.

It is an arithmetic number, because the mean of its divisors is an integer number (78600871).

Almost surely, 2157201741 is an apocalyptic number.

It is an amenable number.

157201741 is a deficient number, since it is larger than the sum of its proper divisors (1).

157201741 is an equidigital number, since it uses as much as digits as its factorization.

157201741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 157201741 is about 12538.0118439887. The cubic root of 157201741 is about 539.7000403134.

The spelling of 157201741 in words is "one hundred fifty-seven million, two hundred one thousand, seven hundred forty-one".