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2155150357 is a prime number
BaseRepresentation
bin1000000001110100…
…1111110000010101
312120012021222111121
42000131033300111
513403204302412
6553504203541
7104256322123
oct20035176025
95505258447
102155150357
11a065873a8
125019095b1
1328465a5c9
14166324913
15c930d107
hex8074fc15

2155150357 has 2 divisors, whose sum is σ = 2155150358. Its totient is φ = 2155150356.

The previous prime is 2155150339. The next prime is 2155150379. The reversal of 2155150357 is 7530515512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2122076356 + 33074001 = 46066^2 + 5751^2 .

It is a cyclic number.

It is not a de Polignac number, because 2155150357 - 27 = 2155150229 is a prime.

It is a super-2 number, since 2×21551503572 = 9289346122554454898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2155150307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077575178 + 1077575179.

It is an arithmetic number, because the mean of its divisors is an integer number (1077575179).

Almost surely, 22155150357 is an apocalyptic number.

It is an amenable number.

2155150357 is a deficient number, since it is larger than the sum of its proper divisors (1).

2155150357 is an equidigital number, since it uses as much as digits as its factorization.

2155150357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26250, while the sum is 34.

The square root of 2155150357 is about 46423.5969847232. The cubic root of 2155150357 is about 1291.6926595412.

Adding to 2155150357 its reverse (7530515512), we get a palindrome (9685665869).

The spelling of 2155150357 in words is "two billion, one hundred fifty-five million, one hundred fifty thousand, three hundred fifty-seven".