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3130987 is a prime number
BaseRepresentation
bin1011111100011001101011
312220001220111
423330121223
51300142422
6151035151
735420146
oct13743153
95801814
103130987
1118493a2
12106bab7
13858172
145b705d
1541ca77
hex2fc66b

3130987 has 2 divisors, whose sum is σ = 3130988. Its totient is φ = 3130986.

The previous prime is 3130979. The next prime is 3130993. The reversal of 3130987 is 7890313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3130987 - 23 = 3130979 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3130957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565493 + 1565494.

It is an arithmetic number, because the mean of its divisors is an integer number (1565494).

Almost surely, 23130987 is an apocalyptic number.

3130987 is a deficient number, since it is larger than the sum of its proper divisors (1).

3130987 is an equidigital number, since it uses as much as digits as its factorization.

3130987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 3130987 is about 1769.4595220010. The cubic root of 3130987 is about 146.2941931851.

The spelling of 3130987 in words is "three million, one hundred thirty thousand, nine hundred eighty-seven".