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974531 is a prime number
BaseRepresentation
bin11101101111011000011
31211111210202
43231323003
5222141111
632515415
711166125
oct3557303
91744722
10974531
116061a8
123abb6b
1328175c
141b5215
15143b3b
hexedec3

974531 has 2 divisors, whose sum is σ = 974532. Its totient is φ = 974530.

The previous prime is 974513. The next prime is 974537. The reversal of 974531 is 135479.

Together with previous prime (974513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (135479) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-974531 is a prime.

It is a super-2 number, since 2×9745312 = 1899421339922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 974494 and 974503.

It is not a weakly prime, because it can be changed into another prime (974537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487265 + 487266.

It is an arithmetic number, because the mean of its divisors is an integer number (487266).

2974531 is an apocalyptic number.

974531 is a deficient number, since it is larger than the sum of its proper divisors (1).

974531 is an equidigital number, since it uses as much as digits as its factorization.

974531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 29.

The square root of 974531 is about 987.1833669587. The cubic root of 974531 is about 99.1437221434.

The spelling of 974531 in words is "nine hundred seventy-four thousand, five hundred thirty-one".