Search a number
-
+
1974961 is a prime number
BaseRepresentation
bin111100010001010110001
310201100010201
413202022301
51001144321
6110155201
722533622
oct7421261
93640121
101974961
1111298aa
127b2b01
13541c21
14395a49
15290291
hex1e22b1

1974961 has 2 divisors, whose sum is σ = 1974962. Its totient is φ = 1974960.

The previous prime is 1974937. The next prime is 1974967. The reversal of 1974961 is 1694791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1366561 + 608400 = 1169^2 + 780^2 .

It is a cyclic number.

It is not a de Polignac number, because 1974961 - 211 = 1972913 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1974961.

It is not a weakly prime, because it can be changed into another prime (1974967) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 987480 + 987481.

It is an arithmetic number, because the mean of its divisors is an integer number (987481).

21974961 is an apocalyptic number.

It is an amenable number.

1974961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1974961 is an equidigital number, since it uses as much as digits as its factorization.

1974961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 37.

The square root of 1974961 is about 1405.3330566097. Note that the first 3 decimals coincide. The cubic root of 1974961 is about 125.4641093541.

The spelling of 1974961 in words is "one million, nine hundred seventy-four thousand, nine hundred sixty-one".